The bunches of black corals are many on this site. Current can be important. For experienced divers. 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.