Crayfish Cave
Why dive here
With 164+ marine species recorded in the area - including blacktip reef sharks, eagle rays, giant moray eels, whale sharks and clownfish - Crayfish Cave offers some of Mergui Archipelago's richest cave diving. Water ranges 28-31°C, warmest April, May, June.
Dropping down at Crayfish Cave, you'll find the entrance to a swim-through arch around 22 metres. It’s not a huge cave system, more of a deep archway, but it does get dark enough inside that we'd suggest bringing a torch to properly appreciate the colours. Look for the colourful sponges, lazy lobsters, and yes, plenty of crayfish tucked into the crevices. On the way out, you’ll likely meet a friendly school of striped snapper hanging around the exit, and the seafans wave gently in the current. It’s a straightforward dive, good for anyone comfortable in enclosed spaces, offering a nice change of pace from the outer reef.
Typical Crayfish Cave Dive Profile
Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.
Safety Notes
Depth of 22m - Advanced Open Water certification recommended.
Overhead environment - never enter without proper cave/cavern training, redundant equipment, and a guideline.
Always perform a 3-minute safety stop at 5m before surfacing.
Reviews for Crayfish Cave
Conditions
Ocean conditions, forecast and tides for Crayfish Cave
Crayfish Cave Ocean Conditions
Monthly averages for Crayfish Cave, sourced from Copernicus Marine satellite data
August Averages
Sea Temperature
29.2°C
85°F
Current Speed
6.32 cm/s
Direction: E (71.6°)
Salinity
31.37 PSU
Data sources: Copernicus Marine Service (EU)
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