This is a top three favourite dive site of nearly every divemaster and dive instructor with experience of diving in Thailand.

This is the dive site where you can get to see anything from Sea Horses, Ghost Pipefish and Harlequin Shrimps to big fish like Manta Rays, Guitarrfish and Whale Shark.

The bigger fish we see more frequently in the early and in the late part of the winter season.

Richelieu rock is shaped like a horse shoe stretching from the surface down to about 40 meters. There can sometimes be a current and visibility is rarely better than 25 meters.