Richelieu Rock is an isolated pinnacle out in the Andaman Sea and highly regarded as one of the best dive sites in Thailand.
Marine life here is plentiful and a great place for divers to snap that perfect photo. Small critters such as seahorses, ghost pipefish, harlequin shrimp or frogfish are found in abundance.
Keep one eye out into the blue as manta rays and whale sharks are seen cruising past. These huge beauty's are attracted to the rock to feed on the rich planktonic blooms that occur here.