Treasure Island
Treasure Island is a long, barreling right reef break and one of the standout waves in the remote Banyak Islands chain off northern Sumatra. The wave offers quality barrel rides with a consistency that makes it the go-to spot for surf charters visiting the area. The Banyak archipelago provides a raw, frontier-style surf experience far removed from the more established Mentawai circuit, with warm water and uncrowded lineups year-round.
Treasure Island surf forecast
Model forecast for swell, wind and tide.
Today's Conditions
Find FlightsLocation & Conditions
Hourly Forecast, Tide & Strike Windows
Tide times today
Strike Score Breakdown
Plan Your Strike
Return flights to SQN, departing today with a 5-day trip window.
Search Flights on SkyscannerLocation & Conditions
Know when Southeast Asia is about to fire
Get the best strike windows in Southeast Asia — and worldwide — in your inbox every Monday & Thursday. Live Strike Scores, the swell behind them, zero fluff.
Get the full Treasure Island trip window
Pro unlocks the 10-day forecast window, unlimited alerts, and custom spot tracking that help turn a good-looking surf report into a better travel decision.
10-day window
See the trip window before flights get expensive.
Unlimited alerts
Let the app watch your score threshold for you.
Custom spots
Track the breaks that actually matter to your travel plans.
Spot Details
CustomizeCustomize this spotSwell Requirements
- Optimal direction
- SW (220°)
- Direction range
- 200° - 240°
- Size range
- 1.2m - 3m
- Ideal size
- 2m - 2.6m
- Height multiplier
- 0.97×
- Ideal period
- 14s+
Wind Requirements
- Optimal direction
- ESE (112°)
- Offshore range
- 82° - 142°
Tide Requirements
- Optimal tide
- mid
- Optimal range
- 0.5m - 1.5m
Water temp
28°C
Wetsuit
Boardshorts / Rashguard
Difficulty
7/10
Crowd level
2/10
Access: Boat from Simeulue or Singkil
Frequently Asked Questions
What tide is best at Treasure Island?
The Treasure Island profile favors mid tide, ideally between 0.5m and 1.5m on the local tide chart. Compare this preference with the forecast tide and local conditions before choosing a session.
What wind direction is offshore at Treasure Island?
The Treasure Island profile uses wind from ESE (112°) as its preferred direction, with an offshore range of 82° to 142°. Wind speed matters too: light winds outside that range can still produce surfable conditions, while strong offshore winds can make takeoffs difficult.
What swell size and direction work best at Treasure Island?
The Treasure Island scoring profile favors swell from SW (200° to 240°), a swell-height range of 1.2m to 3m, and a reference period of 14s. These are model inputs, not guaranteed breaking-wave heights or a promise that the surf will suit every ability.
When is the best time of year to surf Treasure Island?
The main season at Treasure Island is Apr-Oct. SW swell season (Apr-Oct), SE trade winds offshore
How do I get to Treasure Island?
The spot profile lists SQN as a nearby airport. A boat transfer is also required. The profile estimates $80 USD; confirm the current price and departure point with an operator. Boat from Simeulue or Singkil
What kind of wave is Treasure Island?
Treasure Island is a reef break, a right-hander. Difficulty is rated 7/10.
Best Season
Peak: Apr-Oct
SW swell season (Apr-Oct), SE trade winds offshore
Getting There
Nearby Spots
Joysticks
🌊 Banyak's most consistent • Multi-section A-frame • Always something to ride
Lolok Point
🌊 Banyak left • Pairs with Treasure Island • Wind-shift versatility
Bawa
🌊 Indo Sunset Beach • Huge right barrels • Hinako Islands power
Tea Bags
🌊 Simeulue barrel • Less explored • Quality right reef
Dylan's Right
🌊 Simeulue Island right • Barrel rides • Tropical Indo
The Peak (Simeulue)
🌊 Simeulue A-frame • Range of swell angles • Picturesque setting