Crayfish Cave

Good diving all year

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.

Best timeYear-round

WetsuitA 3mm shorty or thin full wetsuit

Marine lifeBlacktip Reef Sharks, Eagle Rays, Giant Moray Eels, Whale Sharks and Clownfish · 164+ species recorded

Water28-31°C · warmest April, May, June

CharacterCave dive · max 22m+

StandoutExceptional marine biodiversity

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.

Today06:1718:1611h 58m daylightGolden hour 17:48

Reviews for Crayfish Cave

Conditions

Ocean conditions, forecast and tides for Crayfish Cave

Crayfish Cave Ocean Conditions

Monthly averages for Crayfish Cave, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (9.78, 97.85) (1km away)