Reef
left
Level 9/10

Icelands

North Sipora, Mentawai, Indonesia
🪸Sharp reef

Icelands (also known as Omak Tidur) is the premier big-wave location in the Mentawai Islands, capable of handling swells up to 20+ feet. Located in North Sipora, this powerful left reef break only wakes up on the largest W-SW swells and rewards expert surfers with massive, hollow waves. The wave is strictly for experienced big-wave riders, as wipeouts are extremely consequential on the deep-water reef. One of the most awe-inspiring waves in all of Indonesia when conditions align.

3-Day Forecast
Thu
30
42
Poor
2.3m
@17s
6km/h
Fri
1
45
Fair
2.3m
@16s
5km/h
Sat
2
36
Poor
2.0m
@15s
6km/h
+7
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Today's Conditions

Swell
2.3m
S(189°)
Score: 5/25
Period
17s
Long period groundswell
Score: 25/25
Wind
6km/h
WSW(252°)
Score: 16/25
Weather
28°C
0.4mm82%
Forecast Confidence
100%
Sources: open-meteo-marine, open-meteo-weather
Best Session
afternoon
AM: 6 km/h NE|PM: 4 km/h WSW
Similar wind — afternoon has better tide for this spot
High tide at 5pm (0.8m)

Location & Conditions

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0°45°90°135°180°225°270°315°NESW
Swell
Wind
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Showing forecast for today

Tide Times

4:54 am
High tide - 0.99m
11:12 am
Low tide - 0.20m
5:00 pm
High tide - 0.79m
Times shown in spot-local time.

Strike Score Breakdown

42
Poor
Components
Swell Direction1/25
Swell Size5/25
Swell Period25/25
Wind16/25
Raw Score47/100
Adjustments
⚠️ Weak Component-5
🚫 Undersized Capmax 64
Adjusted Score42/100
Confidence
Multiplier×1.00
Final Score42

Spot Details

Swell Requirements

Optimal direction
WSW (245°)
Direction range
230° - 260°
Size range
2.4m - 6.1m
Ideal size
5.2m
Height multiplier
1.08×
Ideal period
16s+

Wind Requirements

Optimal direction
E (90°)
Offshore range
60° - 120°

Tide Requirements

Optimal tide
mid to high
Optimal range
0.7m - 1.8m

Water temp

28°C

Wetsuit

Boardshorts / Rashguard

Difficulty

9/10

Crowd level

4/10

Access: Charter boat from Padang (~10hr) or speedboat (~4hr)

Best Season

Peak: Apr-Oct

Secondary: Nov, Dec, Jan, Feb, Mar

Best Apr-Oct (dry season, SE trades offshore). Swells year-round but wet season brings onshore winds.

Getting There

Airport
PDG
Drive time
0 min
Boat required
$200
Data quality
verified

Strike Log

Community Discussion