Island identity and tide/weather access context.
Limestone atoll lagoon reached through a cave or swim-through.
Limestone atoll lagoon reached through a cave or swim-through.
Cock's Comb Island is a limestone atoll in Myanmar with a heart-shaped inner lagoon reached through a cave or swim-through. Inside, the route opens into a sheltered lagoon with dramatic rock formations and changing light, while the entrance remains tide-dependent and needs careful timing. The site stands out for vibrant hard and soft corals, sea fans, anemones, and reef fish, with nudibranchs, seahorses, and shrimp adding macro interest. It is a visual, overhead-style dive rather than an open reef run.
Conservative baseline from public research. No community dives logged yet.
Depth range, seasonality, and planning context.
Best Season
November to April.
Typical Conditions
Calm seas, a tide-sensitive cave entry, and changing light inside the lagoon.
Site conditions, restrictions, and access requirements.
Site Conditions
Safety Notes
The inner lagoon is accessed via a cave or swim-through, and entry is tide-dependent; plan timing carefully and use appropriate overhead-environment procedures and equipment.
Access Restrictions
Entrance is tide-dependent.
Community notes to help plan your visit.
Scuba Diving
A limestone atoll dive with an overhead swim-through into a lagoon and dramatic rock formations with variable light.
Snorkeling
Snorkelling can be possible through the cave on the right tide and in calm conditions.
Community dive logs and visit reports for this site.
Average conditions based on logged dives & visits.
Planning answers for access, conditions, timing, and site logistics.
Last Updated
Research Sources
Island identity and tide/weather access context.
Seasonality and calm-sea context.
Snorkel-through-the-cave context.
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