Koh Ha IsLand Lies between Ko Phi Phi and Hin Daeng, closer to Ko Lanta, and is made up of five small islands. The best of these is on Koh Ha Yai, where two enormous caverns are situated, their entrances at a 10-14 metre depth. A dive is best started from the reef to the west of the caverns

• Operating time: 08.30 - 17.00 Daily.