Visibility 10 - 30 meters. Km south-west of Koh Nang Yuan, this immerged reef is made of 3 pinnacles. Huge groupers hide under a rock, two leopard sharks have their home there. Big pelagic fishes swim around their rocks. A lot of black coral, the less deep part is covered with anemones.
Current can be important, but the reef offers shelter during the dive.
For experienced divers. Visibility 5 - 20 meters. North-east of Koh Nang Yuan, the granite rocks offer possibilities of important explorations. Titan triggers patrol next to groupers, angelfishes, parrot-fishes. Mushroom corals and sponges.