Hidden Depths Diving
Speedboat-based PADI 5 Star IDC centre in Saladan that markets itself as eco-friendly and holds a PADI Green Star award. Its site covers Koh Haa, Hin Daeng/Hin Muang, the Bida islands and Phi Phi, with PADI courses up to IDC; directory listings mention small groups of up to four divers.