Horsburgh Island (Pulu Luar), the northernmost islet of the Cocos (Keeling) Islands atoll, offers pristine coral reef snorkelling in a remote marine protected area. Its turquoise lagoon fringes a 1 km² uninhabited island, where shallow reefs teem with tropical fish, sea turtles, and vibrant coral gardens. The calm lagoon waters provide excellent visibility, while the outer reef edges present more challenging conditions with stronger currents. Historic WWII six-inch gun emplacements add a unique cultural dimension to this untouched paradise, accessible only by organised tour from Home or West Island.
Horsburgh Island
IntermediateMAYBE
MAYBE
Fair. Experienced snorkellers only.
Showing last known conditions
Wave Height 0.2 mSwell Period 12 sWind Speed 15 knPrecipitation 13 mmTidal Phase slack
Last evaluated
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Community contribution: submitted by Daniel
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Moderate risk: Tidal currents in atoll channels
Strong tidal currents can run through the atoll channels, especially around the northern passages. Best snorkelled an hour either side of low or high tide when currents are weakest.
Low risk: Remote location / limited emergency services
The remote location means emergency medical services are far away. Snorkellers should be self-sufficient and experienced.
Low risk: Outer reef surge and swell
Exposed reef edges on the outer (windward) side of the island can have strong surge and breaking waves.
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Getting in
Snorkel tour
Entry
Horsburgh Island is the northernmost island of the South Keeling Islands atoll. Access is typically by organised boat tour from Home Island or West Island, as the island is uninhabited and lies within a marine protected area. No public ferry service.
Parking & facilities
No parking on island. Park at West Island or Home Island departure points.
Access via tour operators; fees vary by operator. Check with Cocos Keeling Islands tour providers.
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About this data
- Conditions last evaluated
- Spot data last updated
- Data sources
- Open-Meteo (marine & weather conditions), tide predictions via UTide, community contributors (descriptions, hazards, marine life).
- License
- Spot content licensed under CC BY-SA 4.0. How's the Spot is open source.
Weather & swell ┬╖ Open-Meteo marine & weather APIs Tides ┬╖ UTide harmonic analysis Sea & safety ┬╖ community reports