Hin Raab South
A small rocky island about 5 km south of Koh Chang whose wall slopes gradually to sand at about 12–16 m. A typical dive circles the whole rock in about an hour past staghorn, leather, whip and table corals and barrel sponges. Hawksbill turtles and nudibranchs are common, along with groupers, snappers, batfish and stonefish; the north side ('Secret Reef') has a small canyon with rays, morays and anemonefish, and whale sharks have been seen here occasionally.
depth: 3–16 m