Strike Mission Surf Spots
type: ItemList
description: Expert-verified surf spot database with detailed swell/wind parameters, hazards, and travel information
number of items: 20
item list element: Tsurigasaki Beach (Shidashita)
item list element: Onjuku Beach
item list element: Katsuura
item list element: Kugenuma Beach
item list element: Kaifu River (Japanese Pipeline)
item list element: Ikumi Beach
item list element: Niyodo Rivermouth
item list element: Kisakihama Beach
item list element: Aoshima Beach
item list element: Okuragahama Beach
item list element: Takezaki Beach
item list element: Ikarashi Cospo Beach
item list element: Machino Rivermouth
item list element: Hamaatsuma Beach
item list element: Shioya Beach
item list element: Sunabe Seawall
item list element: Ikei Island
item list element: Sendai-Shinko Beach
item list element: Shirahama Beach (Izu)
item list element: Shizunami Beach
provider: Strike Mission
  type: Organization
  description: Surf forecast intelligence platform
date published: 2026-01-20
date modified: 2026-06-20T22:08:14.409Z

Tsurigasaki Beach (Shidashita)
type: TouristAttraction
description: Tsurigasaki Beach, locally known as Shidashita, made history as the venue for surfing's Olympic debut at the Tokyo 2020 Games. Located on Chiba's Kujukuri coast, this exposed beachbreak acts as a catcher's mitt for swells from the north, east, and south. The shifting sandbars produce peaks that can get hollow during typhoon swells, and the competitive atmosphere has produced many of Japan's best surfers. Its proximity to Tokyo makes it crowded on weekends, but the quality and consistency justify its world-class status.
disambiguating description: 🏅 Olympic surf venue • Tokyo's premier waves • Japanese surfing capital
geo: GeoCoordinates
  latitude: 35.3736
  longitude: 140.3847
address: PostalAddress
  address locality: Ichinomiya
  address country: Japan
  address region: Asia
additional property: Wave Type
  type: PropertyValue
  value: Beach
  description: This is a beach break, breaking both.
additional property: Optimal Swell Direction
  type: PropertyValue
  value: 110°
  description: Works best with swells from 110° (ESE). Workable range: 45°-170°.
additional property: Swell Size Sweet Spot
  type: PropertyValue
  value: 0.8m - 2.5m
  description: Ideal size: 1.6m. Too small below 0.8m, too big (closeout) above 2.5m.
additional property: Swell Period
  type: PropertyValue
  value: 8s - 12s
  description: Needs at least 8s period. Ideal: 12s+ (long-period groundswell).
additional property: Optimal Wind
  type: PropertyValue
  value: 250° (WSW)
  description: Offshore wind from 250° (WSW). Offshore range: 210°-290°. Best window: morning.
additional property: Tide Preference
  type: PropertyValue
  value: all
  description: Works best between 0.3m and 1.5m tide.
additional property: Primary Season
  type: PropertyValue
  value: Aug, Sep, Oct
  description: Typhoon season Sep-Oct best. Winter NE swells also work.
tourist type: All skill levels
warning: Warning
  text: 👥 Crowded, 🌀 Strong rips
  description: Very crowded on weekends. Strong currents on bigger days.
accessibility API: Nearest airport: NRT
  type: Place
  description: 75 minutes drive from NRT airport.
content rating: verified
contributor: Tokyo 2020 Olympics, Surfline
llm context:
  difficulty: 4
  crowd level: 8
  water temp c: 22
  best board: shortboard
  swell physics:
    explanation: Swell direction must be within the workable range AND within the spot's coastal orientation. A south-facing beach cannot receive north swells, no matter the size or period.
    optimal direction degrees: 110
    workable range min: 45
    workable range max: 170
    sweet spot size m: 1.65
  wind physics:
    explanation: Offshore wind (blowing from land toward ocean) grooms the wave face. Onshore wind (blowing from ocean toward land) destroys wave quality. Wind tolerance varies by wave type.
    optimal offshore degrees: 250
    offshore range min: 210
    offshore range max: 290
    max offshore speed kmh: 35
  travel logistics:
    nearest airport: NRT
    drive time minutes: 75
    boat required: false
    boat cost usd per day: 0
    access notes: Train to Kazusa-Ichinomiya station, then bus or taxi.
  best season:
    primary months: 8
    primary months: 9
    primary months: 10
    primary months names: Aug, Sep, Oct
    secondary months: 11
    secondary months: 12
    secondary months: 1
    secondary months: 2
    secondary months: 3
    secondary months names: Nov, Dec, Jan, Feb, Mar
    season explanation: Typhoon season Sep-Oct best. Winter NE swells also work.

Onjuku Beach
type: TouristAttraction
description: Onjuku is Chiba's mellow alternative to the competitive intensity of Tsurigasaki. This family-friendly beach town offers gentle waves that are perfect for beginners and longboarders, with a relaxed atmosphere featuring seafood restaurants and small guesthouses. The wave is forgiving, the local vibe is welcoming, and the train access from Tokyo makes it an easy day trip. When typhoon swells hit, even Onjuku can produce surprisingly fun walls.
disambiguating description: 🏖️ Family-friendly vibes • Gentle learner waves • Chiba's chill side
geo: GeoCoordinates
  latitude: 35.1736
  longitude: 140.3492
address: PostalAddress
  address locality: Onjuku
  address country: Japan
  address region: Asia
additional property: Wave Type
  type: PropertyValue
  value: Beach
  description: This is a beach break, breaking both.
additional property: Optimal Swell Direction
  type: PropertyValue
  value: 100°
  description: Works best with swells from 100° (E). Workable range: 60°-150°.
additional property: Swell Size Sweet Spot
  type: PropertyValue
  value: 0.5m - 2m
  description: Ideal size: 1.3m. Too small below 0.5m, too big (closeout) above 2m.
additional property: Swell Period
  type: PropertyValue
  value: 7s - 11s
  description: Needs at least 7s period. Ideal: 11s+ (long-period groundswell).
additional property: Optimal Wind
  type: PropertyValue
  value: 270° (W)
  description: Offshore wind from 270° (W). Offshore range: 230°-310°. Best window: morning.
additional property: Tide Preference
  type: PropertyValue
  value: all
  description: Works best between 0.2m and 1.4m tide.
additional property: Primary Season
  type: PropertyValue
  value: Jul, Aug, Sep, Oct
  description: Summer typhoon swells best. Gentle winter waves.
tourist type: All skill levels
warning: Warning
  text: 🌀 Strong rips
  description: Family-friendly but watch for rips on bigger days.
accessibility API: Nearest airport: NRT
  type: Place
  description: 90 minutes drive from NRT airport.
content rating: verified
contributor: Surf Atlas, local guides
llm context:
  difficulty: 2
  crowd level: 5
  water temp c: 22
  best board: shortboard
  swell physics:
    explanation: Swell direction must be within the workable range AND within the spot's coastal orientation. A south-facing beach cannot receive north swells, no matter the size or period.
    optimal direction degrees: 100
    workable range min: 60
    workable range max: 150
    sweet spot size m: 1.25
  wind physics:
    explanation: Offshore wind (blowing from land toward ocean) grooms the wave face. Onshore wind (blowing from ocean toward land) destroys wave quality. Wind tolerance varies by wave type.
    optimal offshore degrees: 270
    offshore range min: 230
    offshore range max: 310
    max offshore speed kmh: 35
  travel logistics:
    nearest airport: NRT
    drive time minutes: 90
    boat required: false
    boat cost usd per day: 0
    access notes: Train to Onjuku station, beach is walkable.
  best season:
    primary months: 7
    primary months: 8
    primary months: 9
    primary months: 10
    primary months names: Jul, Aug, Sep, Oct
    secondary months: 11
    secondary months: 12
    secondary months: 1
    secondary months: 2
    secondary months names: Nov, Dec, Jan, Feb
    season explanation: Summer typhoon swells best. Gentle winter waves.

Katsuura
type: TouristAttraction
description: Katsuura sits at the southern end of Chiba's surf coast, rewarding those who venture farther from Tokyo with beautiful waves and significantly fewer crowds. The beachbreak produces quality peaks during typhoon swells, and the fishing town atmosphere includes some of the best seafood on the coast. The extra distance filters out the weekend warriors, leaving more waves for those who make the trip.
disambiguating description: 🐟 Southern Chiba escape • Quality peaks • Famous fishing town
geo: GeoCoordinates
  latitude: 35.1317
  longitude: 140.3178
address: PostalAddress
  address locality: Katsuura
  address country: Japan
  address region: Asia
additional property: Wave Type
  type: PropertyValue
  value: Beach
  description: This is a beach break, breaking both.
additional property: Optimal Swell Direction
  type: PropertyValue
  value: 120°
  description: Works best with swells from 120° (ESE). Workable range: 70°-160°.
additional property: Swell Size Sweet Spot
  type: PropertyValue
  value: 0.8m - 2.5m
  description: Ideal size: 1.6m. Too small below 0.8m, too big (closeout) above 2.5m.
additional property: Swell Period
  type: PropertyValue
  value: 8s - 12s
  description: Needs at least 8s period. Ideal: 12s+ (long-period groundswell).
additional property: Optimal Wind
  type: PropertyValue
  value: 290° (WNW)
  description: Offshore wind from 290° (WNW). Offshore range: 250°-340°. Best window: morning.
additional property: Tide Preference
  type: PropertyValue
  value: mid
  description: Works best between 0.3m and 1.5m tide.
additional property: Primary Season
  type: PropertyValue
  value: Aug, Sep, Oct
  description: Typhoon season delivers best swells. Less crowded than northern Chiba.
tourist type: All skill levels
warning: Warning
  text: 🌀 Strong rips
  description: Currents can be strong during larger swells.
accessibility API: Nearest airport: NRT
  type: Place
  description: 100 minutes drive from NRT airport.
content rating: verified
contributor: Surfline, local reports
llm context:
  difficulty: 4
  crowd level: 4
  water temp c: 22
  best board: shortboard
  swell physics:
    explanation: Swell direction must be within the workable range AND within the spot's coastal orientation. A south-facing beach cannot receive north swells, no matter the size or period.
    optimal direction degrees: 120
    workable range min: 70
    workable range max: 160
    sweet spot size m: 1.65
  wind physics:
    explanation: Offshore wind (blowing from land toward ocean) grooms the wave face. Onshore wind (blowing from ocean toward land) destroys wave quality. Wind tolerance varies by wave type.
    optimal offshore degrees: 290
    offshore range min: 250
    offshore range max: 340
    max offshore speed kmh: 35
  travel logistics:
    nearest airport: NRT
    drive time minutes: 100
    boat required: false
    boat cost usd per day: 0
    access notes: JR Sotobo Line to Katsuura station.
  best season:
    primary months: 8
    primary months: 9
    primary months: 10
    primary months names: Aug, Sep, Oct
    secondary months: 11
    secondary months: 12
    secondary months: 1
    secondary months: 2
    secondary months names: Nov, Dec, Jan, Feb
    season explanation: Typhoon season delivers best swells. Less crowded than northern Chiba.

Kugenuma Beach
type: TouristAttraction
description: Kugenuma is the beating heart of Shonan surf culture, just 40 minutes by train from Tokyo's Shinjuku station. The beach represents Japanese surf history, celebrating the roots of 60s and 70s surf culture with a chill, welcoming community. The waves are small and inconsistent—dependent on typhoon swells—but the cultural significance and accessibility make this a pilgrimage site for any surfer visiting Japan. Views of Mt. Fuji on clear days complete the experience.
disambiguating description: 🗻 Shonan soul • Mt. Fuji views • Tokyo's beach escape
geo: GeoCoordinates
  latitude: 35.3108
  longitude: 139.4683
address: PostalAddress
  address locality: Fujisawa
  address country: Japan
  address region: Asia
additional property: Wave Type
  type: PropertyValue
  value: Beach
  description: This is a beach break, breaking both.
additional property: Optimal Swell Direction
  type: PropertyValue
  value: 160°
  description: Works best with swells from 160° (SSE). Workable range: 120°-200°.
additional property: Swell Size Sweet Spot
  type: PropertyValue
  value: 0.6m - 2m
  description: Ideal size: 1.3m. Too small below 0.6m, too big (closeout) above 2m.
additional property: Swell Period
  type: PropertyValue
  value: 7s - 10s
  description: Needs at least 7s period. Ideal: 10s+ (long-period groundswell).
additional property: Optimal Wind
  type: PropertyValue
  value: 0° (N)
  description: Offshore wind from 0° (N). Offshore range: 320°-40°. Best window: morning.
additional property: Tide Preference
  type: PropertyValue
  value: all
  description: Works best between 0.2m and 1.2m tide.
additional property: Primary Season
  type: PropertyValue
  value: Jul, Aug, Sep
  description: Typhoon season only. Often flat outside storm windows.
tourist type: All skill levels
warning: Warning
  text: 👥 Crowded
  description: Extremely crowded. 40 min train from Tokyo draws masses.
accessibility API: Nearest airport: HND
  type: Place
  description: 60 minutes drive from HND airport.
content rating: verified
contributor: Japan Travel, Surfline
llm context:
  difficulty: 2
  crowd level: 9
  water temp c: 23
  best board: shortboard
  swell physics:
    explanation: Swell direction must be within the workable range AND within the spot's coastal orientation. A south-facing beach cannot receive north swells, no matter the size or period.
    optimal direction degrees: 160
    workable range min: 120
    workable range max: 200
    sweet spot size m: 1.3
  wind physics:
    explanation: Offshore wind (blowing from land toward ocean) grooms the wave face. Onshore wind (blowing from ocean toward land) destroys wave quality. Wind tolerance varies by wave type.
    optimal offshore degrees: 0
    offshore range min: 320
    offshore range max: 40
    max offshore speed kmh: 35
  travel logistics:
    nearest airport: HND
    drive time minutes: 60
    boat required: false
    boat cost usd per day: 0
    access notes: Odakyu Line from Shinjuku to Kugenuma-Kaigan station.
  best season:
    primary months: 7
    primary months: 8
    primary months: 9
    primary months names: Jul, Aug, Sep
    secondary months: 10
    secondary months: 11
    secondary months names: Oct, Nov
    season explanation: Typhoon season only. Often flat outside storm windows.

Kaifu River (Japanese Pipeline)
type: TouristAttraction
description: Kaifu River is nicknamed the Japanese Pipeline, and when typhoon swells funnel into this rivermouth in southern Tokushima, the name is justified. The wave produces grinding right-hand barrels over a sandbar formed by the Kaifu River's outflow, located in the scenic Muroto-Anan Quasi-National Park. Access to the peak is reserved for experienced surfers, and localism runs deep—but those who earn respect are rewarded with some of Japan's heaviest tubes.
disambiguating description: 🔥 Japanese Pipeline • Typhoon barrels • Earned respect only
geo: GeoCoordinates
  latitude: 33.5556
  longitude: 134.3289
address: PostalAddress
  address locality: Kaifu
  address country: Japan
  address region: Asia
additional property: Wave Type
  type: PropertyValue
  value: Beach
  description: This is a beach break, breaking right.
additional property: Optimal Swell Direction
  type: PropertyValue
  value: 130°
  description: Works best with swells from 130° (SE). Workable range: 90°-180°.
additional property: Swell Size Sweet Spot
  type: PropertyValue
  value: 1m - 3m
  description: Ideal size: 2.0m. Too small below 1m, too big (closeout) above 3m.
additional property: Swell Period
  type: PropertyValue
  value: 10s - 14s
  description: Needs at least 10s period. Ideal: 14s+ (long-period groundswell).
additional property: Optimal Wind
  type: PropertyValue
  value: 320° (NW)
  description: Offshore wind from 320° (NW). Offshore range: 280°-360°. Best window: morning.
additional property: Tide Preference
  type: PropertyValue
  value: mid
  description: Works best between 0.4m and 1.4m tide.
additional property: Primary Season
  type: PropertyValue
  value: Jun, Jul, Aug, Sep, Oct, Nov
  description: Typhoon season Jun-Nov produces world-class waves.
tourist type: Expert surfers only
warning: Warning
  text: 👊 Localism, 🌀 Strong rips, 🪨 Rocks
  description: Wave reserved for experienced surfers. Strong localism.
accessibility API: Nearest airport: TKS
  type: Place
  description: 90 minutes drive from TKS airport.
content rating: verified
contributor: Japan Travel, Stormrider
llm context:
  difficulty: 8
  crowd level: 6
  water temp c: 23
  best board: shortboard
  swell physics:
    explanation: Swell direction must be within the workable range AND within the spot's coastal orientation. A south-facing beach cannot receive north swells, no matter the size or period.
    optimal direction degrees: 130
    workable range min: 90
    workable range max: 180
    sweet spot size m: 2
  wind physics:
    explanation: Offshore wind (blowing from land toward ocean) grooms the wave face. Onshore wind (blowing from ocean toward land) destroys wave quality. Wind tolerance varies by wave type.
    optimal offshore degrees: 320
    offshore range min: 280
    offshore range max: 360
    max offshore speed kmh: 35
  travel logistics:
    nearest airport: TKS
    drive time minutes: 90
    boat required: false
    boat cost usd per day: 0
    access notes: Car essential. Limited public transport.
  best season:
    primary months: 6
    primary months: 7
    primary months: 8
    primary months: 9
    primary months: 10
    primary months: 11
    primary months names: Jun, Jul, Aug, Sep, Oct, Nov
    secondary months: 12
    secondary months: 1
    secondary months: 2
    secondary months names: Dec, Jan, Feb
    season explanation: Typhoon season Jun-Nov produces world-class waves.

Ikumi Beach
type: TouristAttraction
description: Ikumi sits at the heart of Shikoku's surf coast, straddling the border between Tokushima and Kochi prefectures. This is where many of Japan's professional surfing contests are held, with quality beachbreak peaks that respond well to typhoon swells. The area represents the most popular surf zone in Shikoku, with consistent waves and a developed surf infrastructure. The southeast-facing exposure captures the full force of Pacific typhoon energy.
disambiguating description: 🏆 Shikoku contest venue • Pro-level peaks • Typhoon energy
geo: GeoCoordinates
  latitude: 33.5342
  longitude: 134.0847
address: PostalAddress
  address locality: Toyo
  address country: Japan
  address region: Asia
additional property: Wave Type
  type: PropertyValue
  value: Beach
  description: This is a beach break, breaking both.
additional property: Optimal Swell Direction
  type: PropertyValue
  value: 120°
  description: Works best with swells from 120° (ESE). Workable range: 80°-170°.
additional property: Swell Size Sweet Spot
  type: PropertyValue
  value: 0.8m - 2.5m
  description: Ideal size: 1.6m. Too small below 0.8m, too big (closeout) above 2.5m.
additional property: Swell Period
  type: PropertyValue
  value: 8s - 12s
  description: Needs at least 8s period. Ideal: 12s+ (long-period groundswell).
additional property: Optimal Wind
  type: PropertyValue
  value: 310° (NW)
  description: Offshore wind from 310° (NW). Offshore range: 270°-350°. Best window: morning.
additional property: Tide Preference
  type: PropertyValue
  value: all
  description: Works best between 0.3m and 1.5m tide.
additional property: Primary Season
  type: PropertyValue
  value: Jun, Jul, Aug, Sep, Oct, Nov
  description: Typhoon season best. Many pro contests held here.
tourist type: Intermediate to advanced
warning: Warning
  text: 🌀 Strong rips
  description: Currents on bigger days. Contest-level crowds during events.
accessibility API: Nearest airport: TKS
  type: Place
  description: 75 minutes drive from TKS airport.
content rating: verified
contributor: Stormrider, surf contest records
llm context:
  difficulty: 5
  crowd level: 6
  water temp c: 23
  best board: shortboard
  swell physics:
    explanation: Swell direction must be within the workable range AND within the spot's coastal orientation. A south-facing beach cannot receive north swells, no matter the size or period.
    optimal direction degrees: 120
    workable range min: 80
    workable range max: 170
    sweet spot size m: 1.65
  wind physics:
    explanation: Offshore wind (blowing from land toward ocean) grooms the wave face. Onshore wind (blowing from ocean toward land) destroys wave quality. Wind tolerance varies by wave type.
    optimal offshore degrees: 310
    offshore range min: 270
    offshore range max: 350
    max offshore speed kmh: 35
  travel logistics:
    nearest airport: TKS
    drive time minutes: 75
    boat required: false
    boat cost usd per day: 0
    access notes: Car recommended. Between Tokushima and Kochi.
  best season:
    primary months: 6
    primary months: 7
    primary months: 8
    primary months: 9
    primary months: 10
    primary months: 11
    primary months names: Jun, Jul, Aug, Sep, Oct, Nov
    secondary months: 12
    secondary months: 1
    secondary months: 2
    secondary months names: Dec, Jan, Feb
    season explanation: Typhoon season best. Many pro contests held here.

Niyodo Rivermouth
type: TouristAttraction
description: Niyodo Rivermouth is Shikoku's heavy-water gem, a challenging rivermouth break that features fast, powerful right-handers when the sandbanks set up properly. The Niyodo River is famous for having some of Japan's clearest water, and when solid typhoon swells arrive, the rivermouth produces world-class cylinders. Smaller swells mellow it out for longboarding in summer, but when it's pumping, this is serious wave riding.
disambiguating description: 💪 World-class cylinders • Heavy righthanders • Crystal-clear Niyodo
geo: GeoCoordinates
  latitude: 33.4833
  longitude: 133.4667
address: PostalAddress
  address locality: Kochi
  address country: Japan
  address region: Asia
additional property: Wave Type
  type: PropertyValue
  value: Beach
  description: This is a beach break, breaking right.
additional property: Optimal Swell Direction
  type: PropertyValue
  value: 150°
  description: Works best with swells from 150° (SSE). Workable range: 110°-190°.
additional property: Swell Size Sweet Spot
  type: PropertyValue
  value: 1.2m - 3.5m
  description: Ideal size: 2.4m. Too small below 1.2m, too big (closeout) above 3.5m.
additional property: Swell Period
  type: PropertyValue
  value: 10s - 14s
  description: Needs at least 10s period. Ideal: 14s+ (long-period groundswell).
additional property: Optimal Wind
  type: PropertyValue
  value: 350° (N)
  description: Offshore wind from 350° (N). Offshore range: 310°-30°. Best window: morning.
additional property: Tide Preference
  type: PropertyValue
  value: mid
  description: Works best between 0.4m and 1.3m tide.
additional property: Primary Season
  type: PropertyValue
  value: Aug, Sep, Oct, Nov
  description: Needs solid swell to break properly. Summer logs possible.
tourist type: Expert surfers only
warning: Warning
  text: 🌀 Strong rips, 👊 Localism
  description: Shifting peaks make takeoff tricky. Respect local surfers.
accessibility API: Nearest airport: KCZ
  type: Place
  description: 30 minutes drive from KCZ airport.
content rating: verified
contributor: Stormrider, Surf Atlas
llm context:
  difficulty: 7
  crowd level: 4
  water temp c: 24
  best board: shortboard
  swell physics:
    explanation: Swell direction must be within the workable range AND within the spot's coastal orientation. A south-facing beach cannot receive north swells, no matter the size or period.
    optimal direction degrees: 150
    workable range min: 110
    workable range max: 190
    sweet spot size m: 2.35
  wind physics:
    explanation: Offshore wind (blowing from land toward ocean) grooms the wave face. Onshore wind (blowing from ocean toward land) destroys wave quality. Wind tolerance varies by wave type.
    optimal offshore degrees: 350
    offshore range min: 310
    offshore range max: 30
    max offshore speed kmh: 35
  travel logistics:
    nearest airport: KCZ
    drive time minutes: 30
    boat required: false
    boat cost usd per day: 0
    access notes: Car essential. Outside Kochi city.
  best season:
    primary months: 8
    primary months: 9
    primary months: 10
    primary months: 11
    primary months names: Aug, Sep, Oct, Nov
    secondary months: 6
    secondary months: 7
    secondary months names: Jun, Jul
    season explanation: Needs solid swell to break properly. Summer logs possible.

Kisakihama Beach
type: TouristAttraction
description: Kisakihama is Miyazaki's most reliable surf spot, a long uninterrupted stretch of beach nestled between the Kiyotake and Kaeda rivers. The rivermouth sandbars produce quality peaks that work in a huge range of conditions, making this one of the most consistent spots in all of Japan. The 2019 ISA World Surfing Games were held here, cementing its reputation as a world-class venue. Miyazaki's warm subtropical climate and mellow vibe have earned it the nickname "Hawaii of Japan."
disambiguating description: 🌴 Hawaii of Japan • ISA World Games venue • Year-round consistency
geo: GeoCoordinates
  latitude: 31.8542
  longitude: 131.4478
address: PostalAddress
  address locality: Miyazaki City
  address country: Japan
  address region: Asia
additional property: Wave Type
  type: PropertyValue
  value: Beach
  description: This is a beach break, breaking both.
additional property: Optimal Swell Direction
  type: PropertyValue
  value: 110°
  description: Works best with swells from 110° (ESE). Workable range: 45°-180°.
additional property: Swell Size Sweet Spot
  type: PropertyValue
  value: 0.8m - 2.5m
  description: Ideal size: 1.6m. Too small below 0.8m, too big (closeout) above 2.5m.
additional property: Swell Period
  type: PropertyValue
  value: 8s - 12s
  description: Needs at least 8s period. Ideal: 12s+ (long-period groundswell).
additional property: Optimal Wind
  type: PropertyValue
  value: 270° (W)
  description: Offshore wind from 270° (W). Offshore range: 230°-310°. Best window: morning.
additional property: Tide Preference
  type: PropertyValue
  value: all
  description: Works best between 0.3m and 1.5m tide.
additional property: Primary Season
  type: PropertyValue
  value: Jul, Aug, Sep, Oct
  description: Most consistent spot in Miyazaki. Works year-round.
tourist type: All skill levels
warning: Warning
  text: 🌀 Strong rips, 👥 Crowded
  description: Crowded during contests. Currents between rivermouths.
accessibility API: Nearest airport: KMI
  type: Place
  description: 20 minutes drive from KMI airport.
content rating: verified
contributor: 2019 ISA World Surfing Games, Surfline
llm context:
  difficulty: 4
  crowd level: 7
  water temp c: 24
  best board: shortboard
  swell physics:
    explanation: Swell direction must be within the workable range AND within the spot's coastal orientation. A south-facing beach cannot receive north swells, no matter the size or period.
    optimal direction degrees: 110
    workable range min: 45
    workable range max: 180
    sweet spot size m: 1.65
  wind physics:
    explanation: Offshore wind (blowing from land toward ocean) grooms the wave face. Onshore wind (blowing from ocean toward land) destroys wave quality. Wind tolerance varies by wave type.
    optimal offshore degrees: 270
    offshore range min: 230
    offshore range max: 310
    max offshore speed kmh: 35
  travel logistics:
    nearest airport: KMI
    drive time minutes: 20
    boat required: false
    boat cost usd per day: 0
    access notes: Easy access from Miyazaki city. Parking available.
  best season:
    primary months: 7
    primary months: 8
    primary months: 9
    primary months: 10
    primary months names: Jul, Aug, Sep, Oct
    secondary months: 11
    secondary months: 12
    secondary months: 1
    secondary months: 2
    secondary months: 3
    secondary months names: Nov, Dec, Jan, Feb, Mar
    season explanation: Most consistent spot in Miyazaki. Works year-round.

Aoshima Beach
type: TouristAttraction
description: Aoshima is a jewel of Miyazaki surf culture, a long stretch of beach opposite the tiny Aoshima island with its famous shrine. The wave is forgiving and consistent, making it perfect for beginners and surf schools, while the amenities—free parking, nearby cafes, rental shops—make it accessible. July typically delivers the cleanest waves, with summer typhoon swells providing the most consistent surf. Walking distance to Aoshima Shrine makes this a cultural experience as much as a surf destination.
disambiguating description: ⛩️ Shrine island backdrop • Beginner paradise • Miyazaki's soul
geo: GeoCoordinates
  latitude: 31.8028
  longitude: 131.4717
address: PostalAddress
  address locality: Miyazaki City
  address country: Japan
  address region: Asia
additional property: Wave Type
  type: PropertyValue
  value: Beach
  description: This is a beach break, breaking both.
additional property: Optimal Swell Direction
  type: PropertyValue
  value: 120°
  description: Works best with swells from 120° (ESE). Workable range: 80°-170°.
additional property: Swell Size Sweet Spot
  type: PropertyValue
  value: 0.6m - 2m
  description: Ideal size: 1.3m. Too small below 0.6m, too big (closeout) above 2m.
additional property: Swell Period
  type: PropertyValue
  value: 7s - 11s
  description: Needs at least 7s period. Ideal: 11s+ (long-period groundswell).
additional property: Optimal Wind
  type: PropertyValue
  value: 250° (WSW)
  description: Offshore wind from 250° (WSW). Offshore range: 210°-290°. Best window: morning.
additional property: Tide Preference
  type: PropertyValue
  value: all
  description: Works best between 0.2m and 1.4m tide.
additional property: Primary Season
  type: PropertyValue
  value: Jun, Jul, Aug, Sep
  description: July cleanest. Summer typhoons deliver best swells.
tourist type: All skill levels
warning: Warning
  text: 👥 Crowded
  description: Popular weekend spot. Many surf schools.
accessibility API: Nearest airport: KMI
  type: Place
  description: 25 minutes drive from KMI airport.
content rating: verified
contributor: Surf-forecast.com, local reports
llm context:
  difficulty: 2
  crowd level: 7
  water temp c: 25
  best board: shortboard
  swell physics:
    explanation: Swell direction must be within the workable range AND within the spot's coastal orientation. A south-facing beach cannot receive north swells, no matter the size or period.
    optimal direction degrees: 120
    workable range min: 80
    workable range max: 170
    sweet spot size m: 1.3
  wind physics:
    explanation: Offshore wind (blowing from land toward ocean) grooms the wave face. Onshore wind (blowing from ocean toward land) destroys wave quality. Wind tolerance varies by wave type.
    optimal offshore degrees: 250
    offshore range min: 210
    offshore range max: 290
    max offshore speed kmh: 35
  travel logistics:
    nearest airport: KMI
    drive time minutes: 25
    boat required: false
    boat cost usd per day: 0
    access notes: Free parking. Walk to Aoshima Shrine.
  best season:
    primary months: 6
    primary months: 7
    primary months: 8
    primary months: 9
    primary months names: Jun, Jul, Aug, Sep
    secondary months: 10
    secondary months: 11
    secondary months names: Oct, Nov
    season explanation: July cleanest. Summer typhoons deliver best swells.

Okuragahama Beach
type: TouristAttraction
description: Okuragahama was named one of the "Best 100 Beaches in Japan," and the 4-kilometer stretch of white sand and quality peaks justifies the title. Located near Hyuga City in northern Miyazaki, the beach offers both left and right-handers across its expansive length, with enough room to escape crowds. The triangular sandbars formed by rivermouth outflows produce quality waves during typhoon season, and the scale of the beach means there's always a peak with space.
disambiguating description: 🏆 Best 100 Beaches Japan • 4km of peaks • Northern Miyazaki gem
geo: GeoCoordinates
  latitude: 32.4167
  longitude: 131.6333
address: PostalAddress
  address locality: Hyuga
  address country: Japan
  address region: Asia
additional property: Wave Type
  type: PropertyValue
  value: Beach
  description: This is a beach break, breaking both.
additional property: Optimal Swell Direction
  type: PropertyValue
  value: 100°
  description: Works best with swells from 100° (E). Workable range: 60°-150°.
additional property: Swell Size Sweet Spot
  type: PropertyValue
  value: 0.8m - 2.5m
  description: Ideal size: 1.6m. Too small below 0.8m, too big (closeout) above 2.5m.
additional property: Swell Period
  type: PropertyValue
  value: 8s - 12s
  description: Needs at least 8s period. Ideal: 12s+ (long-period groundswell).
additional property: Optimal Wind
  type: PropertyValue
  value: 270° (W)
  description: Offshore wind from 270° (W). Offshore range: 230°-310°. Best window: morning.
additional property: Tide Preference
  type: PropertyValue
  value: all
  description: Works best between 0.3m and 1.5m tide.
additional property: Primary Season
  type: PropertyValue
  value: Jul, Aug, Sep, Oct
  description: Typhoon season best. 4km of peaks to spread crowds.
tourist type: All skill levels
warning: Warning
  text: 🌀 Strong rips
  description: Strong currents on bigger days. 4km beach spreads crowds.
accessibility API: Nearest airport: KMI
  type: Place
  description: 60 minutes drive from KMI airport.
content rating: verified
contributor: Best 100 Beaches in Japan list, Surf Atlas
llm context:
  difficulty: 4
  crowd level: 4
  water temp c: 24
  best board: shortboard
  swell physics:
    explanation: Swell direction must be within the workable range AND within the spot's coastal orientation. A south-facing beach cannot receive north swells, no matter the size or period.
    optimal direction degrees: 100
    workable range min: 60
    workable range max: 150
    sweet spot size m: 1.65
  wind physics:
    explanation: Offshore wind (blowing from land toward ocean) grooms the wave face. Onshore wind (blowing from ocean toward land) destroys wave quality. Wind tolerance varies by wave type.
    optimal offshore degrees: 270
    offshore range min: 230
    offshore range max: 310
    max offshore speed kmh: 35
  travel logistics:
    nearest airport: KMI
    drive time minutes: 60
    boat required: false
    boat cost usd per day: 0
    access notes: North of Miyazaki city. Car recommended.
  best season:
    primary months: 7
    primary months: 8
    primary months: 9
    primary months: 10
    primary months names: Jul, Aug, Sep, Oct
    secondary months: 11
    secondary months: 12
    secondary months: 1
    secondary months: 2
    secondary months names: Nov, Dec, Jan, Feb
    season explanation: Typhoon season best. 4km of peaks to spread crowds.

Takezaki Beach
type: TouristAttraction
description: Takezaki is surfing at the edge of space—literally. This quality beachbreak sits beneath sandstone cliffs near JAXA's Tanegashima Space Center, where you can catch waves with rocket launch pads visible in the background. The island is considered Japan's best surf destination, with its long narrow shape catching swells from both the Pacific and East China Sea. When typhoons roar past, Takezaki produces powerful, quality waves—though access becomes difficult with flights and ferries cancelled.
disambiguating description: 🚀 Surf meets space • JAXA rocket backdrop • Japan's best waves
geo: GeoCoordinates
  latitude: 30.3667
  longitude: 130.95
address: PostalAddress
  address locality: Tanegashima
  address country: Japan
  address region: Asia
additional property: Wave Type
  type: PropertyValue
  value: Beach
  description: This is a beach break, breaking both.
additional property: Optimal Swell Direction
  type: PropertyValue
  value: 130°
  description: Works best with swells from 130° (SE). Workable range: 90°-180°.
additional property: Swell Size Sweet Spot
  type: PropertyValue
  value: 0.8m - 3m
  description: Ideal size: 1.9m. Too small below 0.8m, too big (closeout) above 3m.
additional property: Swell Period
  type: PropertyValue
  value: 8s - 13s
  description: Needs at least 8s period. Ideal: 13s+ (long-period groundswell).
additional property: Optimal Wind
  type: PropertyValue
  value: 320° (NW)
  description: Offshore wind from 320° (NW). Offshore range: 280°-360°. Best window: morning.
additional property: Tide Preference
  type: PropertyValue
  value: all
  description: Works best between 0.3m and 1.5m tide.
additional property: Primary Season
  type: PropertyValue
  value: Jul, Aug, Sep, Oct
  description: Best during typhoons. Year-round swell possible.
tourist type: Intermediate to advanced
warning: Warning
  text: 🌀 Strong rips, 🏝️ Remote
  description: Remote island. Flights and ferries cancelled during storms.
accessibility API: Nearest airport: TNE
  type: Place
  description: 20 minutes drive from TNE airport.
content rating: verified
contributor: Stormrider, NASA/JAXA images
llm context:
  difficulty: 5
  crowd level: 3
  water temp c: 25
  best board: shortboard
  swell physics:
    explanation: Swell direction must be within the workable range AND within the spot's coastal orientation. A south-facing beach cannot receive north swells, no matter the size or period.
    optimal direction degrees: 130
    workable range min: 90
    workable range max: 180
    sweet spot size m: 1.9
  wind physics:
    explanation: Offshore wind (blowing from land toward ocean) grooms the wave face. Onshore wind (blowing from ocean toward land) destroys wave quality. Wind tolerance varies by wave type.
    optimal offshore degrees: 320
    offshore range min: 280
    offshore range max: 360
    max offshore speed kmh: 35
  travel logistics:
    nearest airport: TNE
    drive time minutes: 20
    boat required: false
    boat cost usd per day: 0
    access notes: Fly or ferry from Kagoshima. Car essential on island.
  best season:
    primary months: 7
    primary months: 8
    primary months: 9
    primary months: 10
    primary months names: Jul, Aug, Sep, Oct
    secondary months: 11
    secondary months: 12
    secondary months: 1
    secondary months: 2
    secondary months: 3
    secondary months names: Nov, Dec, Jan, Feb, Mar
    season explanation: Best during typhoons. Year-round swell possible.

Ikarashi Cospo Beach
type: TouristAttraction
description: Ikarashi Cospo is the heart of Sea of Japan surfing, producing consistent waves when Siberian winter storms sweep across from the northwest. The beach features white sand, dunes, and gorgeous views of Sado Island, with mellow waves that work for all levels. The water is shallow enough to touch bottom, making it ideal for beginners, while winter swells can produce fun right-handers across multiple peaks. The local community is welcoming, without the localism found at more famous breaks.
disambiguating description: ❄️ Winter storm swells • Sado Island views • Sea of Japan soul
geo: GeoCoordinates
  latitude: 37.8833
  longitude: 138.9667
address: PostalAddress
  address locality: Niigata
  address country: Japan
  address region: Asia
additional property: Wave Type
  type: PropertyValue
  value: Beach
  description: This is a beach break, breaking both.
additional property: Optimal Swell Direction
  type: PropertyValue
  value: 300°
  description: Works best with swells from 300° (WNW). Workable range: 260°-340°.
additional property: Swell Size Sweet Spot
  type: PropertyValue
  value: 0.8m - 2.5m
  description: Ideal size: 1.6m. Too small below 0.8m, too big (closeout) above 2.5m.
additional property: Swell Period
  type: PropertyValue
  value: 6s - 9s
  description: Needs at least 6s period. Ideal: 9s+ (long-period groundswell).
additional property: Optimal Wind
  type: PropertyValue
  value: 90° (E)
  description: Offshore wind from 90° (E). Offshore range: 50°-130°. Best window: morning.
additional property: Tide Preference
  type: PropertyValue
  value: all
  description: Works best between 0.2m and 1.2m tide.
additional property: Primary Season
  type: PropertyValue
  value: Dec, Jan, Feb, Mar, Apr
  description: Winter NW swells from Siberian storms. Summer flat.
tourist type: All skill levels
warning: Warning
  text: 🌀 Strong rips
  description: Cold winter water. Currents possible.
accessibility API: Nearest airport: KIJ
  type: Place
  description: 20 minutes drive from KIJ airport.
content rating: verified
contributor: Japan Travel, local reports
llm context:
  difficulty: 3
  crowd level: 3
  water temp c: 14
  best board: shortboard
  swell physics:
    explanation: Swell direction must be within the workable range AND within the spot's coastal orientation. A south-facing beach cannot receive north swells, no matter the size or period.
    optimal direction degrees: 300
    workable range min: 260
    workable range max: 340
    sweet spot size m: 1.65
  wind physics:
    explanation: Offshore wind (blowing from land toward ocean) grooms the wave face. Onshore wind (blowing from ocean toward land) destroys wave quality. Wind tolerance varies by wave type.
    optimal offshore degrees: 90
    offshore range min: 50
    offshore range max: 130
    max offshore speed kmh: 35
  travel logistics:
    nearest airport: KIJ
    drive time minutes: 20
    boat required: false
    boat cost usd per day: 0
    access notes: Near Niigata city. Parking and facilities available.
  best season:
    primary months: 12
    primary months: 1
    primary months: 2
    primary months: 3
    primary months: 4
    primary months names: Dec, Jan, Feb, Mar, Apr
    secondary months: 11
    secondary months: 5
    secondary months names: Nov, May
    season explanation: Winter NW swells from Siberian storms. Summer flat.

Machino Rivermouth
type: TouristAttraction
description: Machino Rivermouth sits on the exposed Noto Peninsula of Ishikawa Prefecture, jutting out into the Sea of Japan to catch maximum swell from Siberian winter storms. When northwest winds howl down from the continent, this rivermouth lights up with powerful peaks—some of the biggest barrels Japan has to offer. The remote location means empty lineups, but also cold water, limited facilities, and serious commitment. This is frontier surfing for those who earn their waves.
disambiguating description: 🌊 Noto Peninsula power • Maximum swell exposure • Frontier surfing
geo: GeoCoordinates
  latitude: 37.05
  longitude: 136.7667
address: PostalAddress
  address locality: Noto Peninsula
  address country: Japan
  address region: Asia
additional property: Wave Type
  type: PropertyValue
  value: Beach
  description: This is a beach break, breaking both.
additional property: Optimal Swell Direction
  type: PropertyValue
  value: 320°
  description: Works best with swells from 320° (NW). Workable range: 280°-360°.
additional property: Swell Size Sweet Spot
  type: PropertyValue
  value: 1m - 3m
  description: Ideal size: 2.0m. Too small below 1m, too big (closeout) above 3m.
additional property: Swell Period
  type: PropertyValue
  value: 7s - 10s
  description: Needs at least 7s period. Ideal: 10s+ (long-period groundswell).
additional property: Optimal Wind
  type: PropertyValue
  value: 120° (ESE)
  description: Offshore wind from 120° (ESE). Offshore range: 80°-160°. Best window: morning.
additional property: Tide Preference
  type: PropertyValue
  value: mid
  description: Works best between 0.3m and 1.4m tide.
additional property: Primary Season
  type: PropertyValue
  value: Dec, Jan, Feb, Mar
  description: Winter only. Noto Peninsula catches maximum swell.
tourist type: Intermediate to advanced
warning: Warning
  text: 🌀 Strong rips, 🏝️ Remote
  description: Remote peninsula. Cold water requires full winter gear.
accessibility API: Nearest airport: KMQ
  type: Place
  description: 120 minutes drive from KMQ airport.
content rating: verified
contributor: Stormrider
llm context:
  difficulty: 5
  crowd level: 2
  water temp c: 12
  best board: shortboard
  swell physics:
    explanation: Swell direction must be within the workable range AND within the spot's coastal orientation. A south-facing beach cannot receive north swells, no matter the size or period.
    optimal direction degrees: 320
    workable range min: 280
    workable range max: 360
    sweet spot size m: 2
  wind physics:
    explanation: Offshore wind (blowing from land toward ocean) grooms the wave face. Onshore wind (blowing from ocean toward land) destroys wave quality. Wind tolerance varies by wave type.
    optimal offshore degrees: 120
    offshore range min: 80
    offshore range max: 160
    max offshore speed kmh: 35
  travel logistics:
    nearest airport: KMQ
    drive time minutes: 120
    boat required: false
    boat cost usd per day: 0
    access notes: Remote drive to Noto Peninsula. Car essential.
  best season:
    primary months: 12
    primary months: 1
    primary months: 2
    primary months: 3
    primary months names: Dec, Jan, Feb, Mar
    secondary months: 11
    secondary months: 4
    secondary months names: Nov, Apr
    season explanation: Winter only. Noto Peninsula catches maximum swell.

Hamaatsuma Beach
type: TouristAttraction
description: Hamaatsuma is Hokkaido's most accessible surf spot, a beginner-friendly beachbreak south of New Chitose Airport with consistent 2-foot waves and full facilities. The water is cold year-round—even summer requires at least a 3/2 wetsuit—but the tradeoff is uncrowded waves and an authentic Japanese surf experience far from the Tokyo masses. August through November offers the best combination of warmer water and typhoon swells.
disambiguating description: 🥶 Hokkaido frontier • Uncrowded waves • Cold-water adventure
geo: GeoCoordinates
  latitude: 42.5167
  longitude: 141.8833
address: PostalAddress
  address locality: Tomakomai
  address country: Japan
  address region: Asia
additional property: Wave Type
  type: PropertyValue
  value: Beach
  description: This is a beach break, breaking both.
additional property: Optimal Swell Direction
  type: PropertyValue
  value: 150°
  description: Works best with swells from 150° (SSE). Workable range: 110°-190°.
additional property: Swell Size Sweet Spot
  type: PropertyValue
  value: 0.6m - 2m
  description: Ideal size: 1.3m. Too small below 0.6m, too big (closeout) above 2m.
additional property: Swell Period
  type: PropertyValue
  value: 7s - 11s
  description: Needs at least 7s period. Ideal: 11s+ (long-period groundswell).
additional property: Optimal Wind
  type: PropertyValue
  value: 0° (N)
  description: Offshore wind from 0° (N). Offshore range: 320°-40°. Best window: morning.
additional property: Tide Preference
  type: PropertyValue
  value: all
  description: Works best between 0.2m and 1.3m tide.
additional property: Primary Season
  type: PropertyValue
  value: Aug, Sep, Oct, Nov
  description: Typhoon season best. Summer warmest water.
tourist type: All skill levels
warning: Warning
  text: 🌀 Strong rips
  description: Cold water year-round. Full wetsuit required even summer.
accessibility API: Nearest airport: CTS
  type: Place
  description: 45 minutes drive from CTS airport.
content rating: verified
contributor: Surf Atlas, Japan Travel
llm context:
  difficulty: 3
  crowd level: 2
  water temp c: 15
  best board: shortboard
  swell physics:
    explanation: Swell direction must be within the workable range AND within the spot's coastal orientation. A south-facing beach cannot receive north swells, no matter the size or period.
    optimal direction degrees: 150
    workable range min: 110
    workable range max: 190
    sweet spot size m: 1.3
  wind physics:
    explanation: Offshore wind (blowing from land toward ocean) grooms the wave face. Onshore wind (blowing from ocean toward land) destroys wave quality. Wind tolerance varies by wave type.
    optimal offshore degrees: 0
    offshore range min: 320
    offshore range max: 40
    max offshore speed kmh: 35
  travel logistics:
    nearest airport: CTS
    drive time minutes: 45
    boat required: false
    boat cost usd per day: 0
    access notes: South of New Chitose Airport. Parking and facilities.
  best season:
    primary months: 8
    primary months: 9
    primary months: 10
    primary months: 11
    primary months names: Aug, Sep, Oct, Nov
    secondary months: 6
    secondary months: 7
    secondary months names: Jun, Jul
    season explanation: Typhoon season best. Summer warmest water.

Shioya Beach
type: TouristAttraction
description: Shioya is where Japan's surf and ski cultures collide—a rivermouth break near Otaru that lights up with the same Siberian storms that dump legendary powder on Niseko and Hokkaido's ski resorts. The water temperature drops near freezing, requiring 5mm+ wetsuits with hoods, gloves, and boots, but the reward is empty, powerful waves with snow-covered beaches. A small but committed community of surfers brave these conditions, often combining morning surfs with afternoon powder runs.
disambiguating description: 🎿 Surf & ski country • Siberian storm power • Powder & waves
geo: GeoCoordinates
  latitude: 43.2167
  longitude: 140.9833
address: PostalAddress
  address locality: Otaru
  address country: Japan
  address region: Asia
additional property: Wave Type
  type: PropertyValue
  value: Beach
  description: This is a beach break, breaking right.
additional property: Optimal Swell Direction
  type: PropertyValue
  value: 300°
  description: Works best with swells from 300° (WNW). Workable range: 260°-340°.
additional property: Swell Size Sweet Spot
  type: PropertyValue
  value: 1m - 3m
  description: Ideal size: 2.0m. Too small below 1m, too big (closeout) above 3m.
additional property: Swell Period
  type: PropertyValue
  value: 6s - 9s
  description: Needs at least 6s period. Ideal: 9s+ (long-period groundswell).
additional property: Optimal Wind
  type: PropertyValue
  value: 90° (E)
  description: Offshore wind from 90° (E). Offshore range: 50°-130°. Best window: morning.
additional property: Tide Preference
  type: PropertyValue
  value: mid
  description: Works best between 0.3m and 1.4m tide.
additional property: Primary Season
  type: PropertyValue
  value: Dec, Jan, Feb, Mar
  description: Winter only. Same storms that bring powder to ski resorts.
tourist type: Intermediate to advanced
warning: Warning
  text: 🌀 Strong rips, 🏝️ Remote
  description: Bitter cold. Water temp near freezing. 5mm+ wetsuit essential.
accessibility API: Nearest airport: CTS
  type: Place
  description: 40 minutes drive from CTS airport.
content rating: verified
contributor: Stormrider, local hardcore crew
llm context:
  difficulty: 6
  crowd level: 1
  water temp c: 8
  best board: shortboard
  swell physics:
    explanation: Swell direction must be within the workable range AND within the spot's coastal orientation. A south-facing beach cannot receive north swells, no matter the size or period.
    optimal direction degrees: 300
    workable range min: 260
    workable range max: 340
    sweet spot size m: 2
  wind physics:
    explanation: Offshore wind (blowing from land toward ocean) grooms the wave face. Onshore wind (blowing from ocean toward land) destroys wave quality. Wind tolerance varies by wave type.
    optimal offshore degrees: 90
    offshore range min: 50
    offshore range max: 130
    max offshore speed kmh: 35
  travel logistics:
    nearest airport: CTS
    drive time minutes: 40
    boat required: false
    boat cost usd per day: 0
    access notes: Near Sapporo. The same road to Niseko ski resorts.
  best season:
    primary months: 12
    primary months: 1
    primary months: 2
    primary months: 3
    primary months names: Dec, Jan, Feb, Mar
    secondary months: 11
    secondary months: 4
    secondary months names: Nov, Apr
    season explanation: Winter only. Same storms that bring powder to ski resorts.

Sunabe Seawall
type: TouristAttraction
description: Sunabe Seawall is the most hallowed ground for surfing in Okinawa, a series of reef breaks along a seawall near American Village. The area features multiple distinct peaks—Bowls, California, Hawaiians, Hotels—each breaking over rock reef with dedicated paddle channels. The consistent windswell from October through March combines with occasional typhoon groundswells to produce fun waves in tropical water. Shallow reef means you surf around high tide and wear booties, but the warm water and welcoming community make this a Waikiki-like experience.
disambiguating description: 🌺 Okinawa's sacred ground • Warm reef breaks • Tropical vibes
geo: GeoCoordinates
  latitude: 26.3217
  longitude: 127.7483
address: PostalAddress
  address locality: Chatan
  address country: Japan
  address region: Asia
additional property: Wave Type
  type: PropertyValue
  value: Reef
  description: This is a reef break, breaking both.
additional property: Optimal Swell Direction
  type: PropertyValue
  value: 280°
  description: Works best with swells from 280° (W). Workable range: 240°-320°.
additional property: Swell Size Sweet Spot
  type: PropertyValue
  value: 0.8m - 2.5m
  description: Ideal size: 1.6m. Too small below 0.8m, too big (closeout) above 2.5m.
additional property: Swell Period
  type: PropertyValue
  value: 8s - 12s
  description: Needs at least 8s period. Ideal: 12s+ (long-period groundswell).
additional property: Optimal Wind
  type: PropertyValue
  value: 90° (E)
  description: Offshore wind from 90° (E). Offshore range: 50°-130°. Best window: morning.
additional property: Tide Preference
  type: PropertyValue
  value: high
  description: Works best between 0.8m and 2m tide.
additional property: Primary Season
  type: PropertyValue
  value: Oct, Nov, Dec, Jan, Feb, Mar
  description: Oct-Mar for NW swells. Summer typhoons possible.
tourist type: Intermediate to advanced
warning: Warning
  text: 🪸 Sharp reef, 🦔 Urchins, 👥 Crowded, ⚠️ Shallow
  description: Shallow reef. Booties recommended. Only surf around high tide.
accessibility API: Nearest airport: OKA
  type: Place
  description: 30 minutes drive from OKA airport.
content rating: verified
contributor: Stormrider, Stripes Okinawa
llm context:
  difficulty: 5
  crowd level: 7
  water temp c: 26
  best board: shortboard
  swell physics:
    explanation: Swell direction must be within the workable range AND within the spot's coastal orientation. A south-facing beach cannot receive north swells, no matter the size or period.
    optimal direction degrees: 280
    workable range min: 240
    workable range max: 320
    sweet spot size m: 1.65
  wind physics:
    explanation: Offshore wind (blowing from land toward ocean) grooms the wave face. Onshore wind (blowing from ocean toward land) destroys wave quality. Wind tolerance varies by wave type.
    optimal offshore degrees: 90
    offshore range min: 50
    offshore range max: 130
    max offshore speed kmh: 35
  travel logistics:
    nearest airport: OKA
    drive time minutes: 30
    boat required: false
    boat cost usd per day: 0
    access notes: Near American Village. Easy access from Naha.
  best season:
    primary months: 10
    primary months: 11
    primary months: 12
    primary months: 1
    primary months: 2
    primary months: 3
    primary months names: Oct, Nov, Dec, Jan, Feb, Mar
    secondary months: 7
    secondary months: 8
    secondary months: 9
    secondary months names: Jul, Aug, Sep
    season explanation: Oct-Mar for NW swells. Summer typhoons possible.

Ikei Island
type: TouristAttraction
description: Ikei Island offers Okinawa's best east-coast waves, catching E-SE swells when the popular west-side breaks are blown out by onshore winds. The island is accessible by car via bridges, but getting to the surf requires a long paddle to the point—worth it for those who make the effort. The reef break works for all levels, with beautiful coastal scenery and significantly fewer crowds than Sunabe. Tide-dependent like all Okinawa breaks, with surfing limited to higher tides.
disambiguating description: 🏝️ East coast escape • Long paddle reward • Okinawa's hidden gem
geo: GeoCoordinates
  latitude: 26.4
  longitude: 128
address: PostalAddress
  address locality: Uruma
  address country: Japan
  address region: Asia
additional property: Wave Type
  type: PropertyValue
  value: Reef
  description: This is a reef break, breaking both.
additional property: Optimal Swell Direction
  type: PropertyValue
  value: 100°
  description: Works best with swells from 100° (E). Workable range: 60°-150°.
additional property: Swell Size Sweet Spot
  type: PropertyValue
  value: 0.8m - 2.5m
  description: Ideal size: 1.6m. Too small below 0.8m, too big (closeout) above 2.5m.
additional property: Swell Period
  type: PropertyValue
  value: 8s - 12s
  description: Needs at least 8s period. Ideal: 12s+ (long-period groundswell).
additional property: Optimal Wind
  type: PropertyValue
  value: 270° (W)
  description: Offshore wind from 270° (W). Offshore range: 230°-310°. Best window: morning.
additional property: Tide Preference
  type: PropertyValue
  value: high
  description: Works best between 0.8m and 2m tide.
additional property: Primary Season
  type: PropertyValue
  value: Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
  description: East coast works when west has onshore. Typhoon season best.
tourist type: Intermediate to advanced
warning: Warning
  text: 🪸 Sharp reef, 🦔 Urchins, ⚠️ Shallow, 🚶 Difficult access
  description: Long paddle to point. Very shallow at low tide.
accessibility API: Nearest airport: OKA
  type: Place
  description: 60 minutes drive from OKA airport.
content rating: verified
contributor: Evertrail Okinawa, Stormrider
llm context:
  difficulty: 5
  crowd level: 3
  water temp c: 27
  best board: shortboard
  swell physics:
    explanation: Swell direction must be within the workable range AND within the spot's coastal orientation. A south-facing beach cannot receive north swells, no matter the size or period.
    optimal direction degrees: 100
    workable range min: 60
    workable range max: 150
    sweet spot size m: 1.65
  wind physics:
    explanation: Offshore wind (blowing from land toward ocean) grooms the wave face. Onshore wind (blowing from ocean toward land) destroys wave quality. Wind tolerance varies by wave type.
    optimal offshore degrees: 270
    offshore range min: 230
    offshore range max: 310
    max offshore speed kmh: 35
  travel logistics:
    nearest airport: OKA
    drive time minutes: 60
    boat required: false
    boat cost usd per day: 0
    access notes: Drive to Ikei Island via bridges. Long paddle out.
  best season:
    primary months: 4
    primary months: 5
    primary months: 6
    primary months: 7
    primary months: 8
    primary months: 9
    primary months: 10
    primary months: 11
    primary months names: Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
    secondary months: 12
    secondary months: 1
    secondary months: 2
    secondary months: 3
    secondary months names: Dec, Jan, Feb, Mar
    season explanation: East coast works when west has onshore. Typhoon season best.

Sendai-Shinko Beach
type: TouristAttraction
description: Sendai-Shinko is described as one of Japan's best beachbreaks, producing barrelling peaks when solid swells arrive from the Pacific. Located on the Tohoku coast, this northern break catches both typhoon swells from the southeast and winter swells from the northeast. The water is colder than southern Japan, but the quality of the waves—hollow and powerful when it's on—rewards those who brave the temperatures. The Sendai surf community is active and welcoming.
disambiguating description: 🌊 Japan's best beachbreak • Tohoku barrels • Northern quality
geo: GeoCoordinates
  latitude: 38.25
  longitude: 141.0167
address: PostalAddress
  address locality: Sendai
  address country: Japan
  address region: Asia
additional property: Wave Type
  type: PropertyValue
  value: Beach
  description: This is a beach break, breaking both.
additional property: Optimal Swell Direction
  type: PropertyValue
  value: 100°
  description: Works best with swells from 100° (E). Workable range: 60°-150°.
additional property: Swell Size Sweet Spot
  type: PropertyValue
  value: 1m - 3m
  description: Ideal size: 2.0m. Too small below 1m, too big (closeout) above 3m.
additional property: Swell Period
  type: PropertyValue
  value: 9s - 13s
  description: Needs at least 9s period. Ideal: 13s+ (long-period groundswell).
additional property: Optimal Wind
  type: PropertyValue
  value: 270° (W)
  description: Offshore wind from 270° (W). Offshore range: 230°-310°. Best window: morning.
additional property: Tide Preference
  type: PropertyValue
  value: mid
  description: Works best between 0.3m and 1.5m tide.
additional property: Primary Season
  type: PropertyValue
  value: Aug, Sep, Oct, Nov
  description: Typhoon season and winter NE swells. Cold water Oct-May.
tourist type: Intermediate to advanced
warning: Warning
  text: 🌀 Strong rips, 👥 Crowded
  description: Can get crowded as Sendai's main surf beach.
accessibility API: Nearest airport: SDJ
  type: Place
  description: 30 minutes drive from SDJ airport.
content rating: verified
contributor: Stormrider
llm context:
  difficulty: 5
  crowd level: 5
  water temp c: 18
  best board: shortboard
  swell physics:
    explanation: Swell direction must be within the workable range AND within the spot's coastal orientation. A south-facing beach cannot receive north swells, no matter the size or period.
    optimal direction degrees: 100
    workable range min: 60
    workable range max: 150
    sweet spot size m: 2
  wind physics:
    explanation: Offshore wind (blowing from land toward ocean) grooms the wave face. Onshore wind (blowing from ocean toward land) destroys wave quality. Wind tolerance varies by wave type.
    optimal offshore degrees: 270
    offshore range min: 230
    offshore range max: 310
    max offshore speed kmh: 35
  travel logistics:
    nearest airport: SDJ
    drive time minutes: 30
    boat required: false
    boat cost usd per day: 0
    access notes: Sendai city beach. Accessible by train and car.
  best season:
    primary months: 8
    primary months: 9
    primary months: 10
    primary months: 11
    primary months names: Aug, Sep, Oct, Nov
    secondary months: 12
    secondary months: 1
    secondary months: 2
    secondary months: 3
    secondary months names: Dec, Jan, Feb, Mar
    season explanation: Typhoon season and winter NE swells. Cold water Oct-May.

Shirahama Beach (Izu)
type: TouristAttraction
description: Shirahama is the Izu Peninsula's premier surf beach, a consistent beachbreak that hosts competitions and draws surfers from across the Kanto region. The white sand beach is picture-perfect, and the wave works across a range of conditions, though it needs typhoon swells to really come alive. The scenic Izu Peninsula drive makes the journey worthwhile, and the area offers hot springs (onsen) to warm up after cold-water sessions.
disambiguating description: ♨️ Izu Peninsula gem • White sand beauty • Hot springs après-surf
geo: GeoCoordinates
  latitude: 34.6667
  longitude: 138.9667
address: PostalAddress
  address locality: Shimoda
  address country: Japan
  address region: Asia
additional property: Wave Type
  type: PropertyValue
  value: Beach
  description: This is a beach break, breaking both.
additional property: Optimal Swell Direction
  type: PropertyValue
  value: 140°
  description: Works best with swells from 140° (SE). Workable range: 100°-180°.
additional property: Swell Size Sweet Spot
  type: PropertyValue
  value: 0.6m - 2m
  description: Ideal size: 1.3m. Too small below 0.6m, too big (closeout) above 2m.
additional property: Swell Period
  type: PropertyValue
  value: 7s - 11s
  description: Needs at least 7s period. Ideal: 11s+ (long-period groundswell).
additional property: Optimal Wind
  type: PropertyValue
  value: 320° (NW)
  description: Offshore wind from 320° (NW). Offshore range: 280°-360°. Best window: morning.
additional property: Tide Preference
  type: PropertyValue
  value: all
  description: Works best between 0.2m and 1.4m tide.
additional property: Primary Season
  type: PropertyValue
  value: Jul, Aug, Sep, Oct
  description: Summer typhoon swells. Popular contest venue.
tourist type: All skill levels
warning: Warning
  text: 👥 Crowded
  description: Very popular beach. Crowded in summer.
accessibility API: Nearest airport: HND
  type: Place
  description: 180 minutes drive from HND airport.
content rating: verified
contributor: Stormrider, competition records
llm context:
  difficulty: 3
  crowd level: 8
  water temp c: 23
  best board: shortboard
  swell physics:
    explanation: Swell direction must be within the workable range AND within the spot's coastal orientation. A south-facing beach cannot receive north swells, no matter the size or period.
    optimal direction degrees: 140
    workable range min: 100
    workable range max: 180
    sweet spot size m: 1.3
  wind physics:
    explanation: Offshore wind (blowing from land toward ocean) grooms the wave face. Onshore wind (blowing from ocean toward land) destroys wave quality. Wind tolerance varies by wave type.
    optimal offshore degrees: 320
    offshore range min: 280
    offshore range max: 360
    max offshore speed kmh: 35
  travel logistics:
    nearest airport: HND
    drive time minutes: 180
    boat required: false
    boat cost usd per day: 0
    access notes: Train to Izukyu-Shimoda, then bus. Beautiful coastal drive.
  best season:
    primary months: 7
    primary months: 8
    primary months: 9
    primary months: 10
    primary months names: Jul, Aug, Sep, Oct
    secondary months: 11
    secondary months: 12
    secondary months names: Nov, Dec
    season explanation: Summer typhoon swells. Popular contest venue.

Shizunami Beach
type: TouristAttraction
description: Shizunami represents Shizuoka Prefecture's growing surf infrastructure, with a new surf stadium built nearby that signals Japan's investment in wave-riding culture. The southeast-facing beach catches typhoon swells and produces quality peaks across multiple sandbars. Located between Shizuoka city and the surf towns of Hamamatsu, this is a reliable option when Chiba is too crowded or the swell angle favors the southern coast.
disambiguating description: 🏟️ New surf stadium zone • Shizuoka quality • Growing scene
geo: GeoCoordinates
  latitude: 34.6833
  longitude: 138.2167
address: PostalAddress
  address locality: Makinohara
  address country: Japan
  address region: Asia
additional property: Wave Type
  type: PropertyValue
  value: Beach
  description: This is a beach break, breaking both.
additional property: Optimal Swell Direction
  type: PropertyValue
  value: 150°
  description: Works best with swells from 150° (SSE). Workable range: 110°-190°.
additional property: Swell Size Sweet Spot
  type: PropertyValue
  value: 0.8m - 2.5m
  description: Ideal size: 1.6m. Too small below 0.8m, too big (closeout) above 2.5m.
additional property: Swell Period
  type: PropertyValue
  value: 8s - 12s
  description: Needs at least 8s period. Ideal: 12s+ (long-period groundswell).
additional property: Optimal Wind
  type: PropertyValue
  value: 350° (N)
  description: Offshore wind from 350° (N). Offshore range: 310°-30°. Best window: morning.
additional property: Tide Preference
  type: PropertyValue
  value: mid
  description: Works best between 0.3m and 1.5m tide.
additional property: Primary Season
  type: PropertyValue
  value: Jul, Aug, Sep, Oct
  description: Typhoon season best. New surf stadium built nearby.
tourist type: All skill levels
warning: Warning
  text: 🌀 Strong rips
  description: Currents on bigger days.
accessibility API: Nearest airport: FSZ
  type: Place
  description: 30 minutes drive from FSZ airport.
content rating: verified
contributor: Stormrider, local reports
llm context:
  difficulty: 4
  crowd level: 5
  water temp c: 22
  best board: shortboard
  swell physics:
    explanation: Swell direction must be within the workable range AND within the spot's coastal orientation. A south-facing beach cannot receive north swells, no matter the size or period.
    optimal direction degrees: 150
    workable range min: 110
    workable range max: 190
    sweet spot size m: 1.65
  wind physics:
    explanation: Offshore wind (blowing from land toward ocean) grooms the wave face. Onshore wind (blowing from ocean toward land) destroys wave quality. Wind tolerance varies by wave type.
    optimal offshore degrees: 350
    offshore range min: 310
    offshore range max: 30
    max offshore speed kmh: 35
  travel logistics:
    nearest airport: FSZ
    drive time minutes: 30
    boat required: false
    boat cost usd per day: 0
    access notes: Between Shizuoka and Hamamatsu. New surf park nearby.
  best season:
    primary months: 7
    primary months: 8
    primary months: 9
    primary months: 10
    primary months names: Jul, Aug, Sep, Oct
    secondary months: 11
    secondary months: 12
    secondary months: 1
    secondary months names: Nov, Dec, Jan
    season explanation: Typhoon season best. New surf stadium built nearby.