Meet new scuba divers, maintain a virtual dive log, participate in our forum, share underwater photos, research dive sites and more. Members login here.

Upload Photo

Koh Haa Yai is a boat accessible salt water dive site, located in Koh Lanta, Krabi 85110, Thailand. This dive site has an average rating of 5.00 out of 5 from 1 scuba divers.

Ko Haa Yai is the biggest of the five islands that make up Ko Haa and is one of the most spectacular. It is most famous for the enormous cathedral caves - two huge underwater caverns that it is possible to surface in & swim between - that are always a delight for visiting divers. It is also an excellent spot to see Hawksbill Turtles feasting on Bubble Coral and has a series of stunning underwater pinnacles carpeted in soft corals and a myriad of marine life from shrimps & crabs to Giant Morays, Trumpetfish, Flutemouths & many more colourful reef species.