Top Richelieu Rock Dive Sites
1. Richelieu Rock (Main Pinnacle)
This horseshoe-shaped pinnacle is famed for its rich biodiversity. Divers may encounter whale sharks, harlequin shrimp, seahorses, barracuda, and schools of snapper. It is an advanced scuba site with currents and deep drop-offs, and it lies within the Surin Islands Marine Park.
2. East Ridge (Richelieu Rock)
Located on the sheltered side of the rock, East Ridge offers colorful soft corals, cuttlefish, lionfish, and ghost pipefish. It is suitable for intermediate to advanced scuba divers. The site is known for calmer conditions and makes an excellent second dive.
3. West Wall (Richelieu Rock)
This steeper, deeper side of the rock features dramatic walls and swim-throughs, attracting trevally, moray eels, and the occasional manta ray. Due to depth and surge, it's best for advanced scuba divers looking for thrilling topography and pelagic species.
4. Surin Islands (Koh Torinla) – Freediving possible
Just north of Richelieu Rock, the Surin Islands offer easy scuba and freediving on healthy reefs with clownfish, reef sharks, and turtles. Protected within the national park, Koh Torinla features gentle slopes and excellent visibility, ideal for all levels.
5. Koh Tachai Pinnacle
Often included in liveaboard routes from Richelieu Rock, this site hosts leopard sharks, barracuda, and batfish. Strong currents and deep formations make it suitable for advanced scuba diving. The submerged boulder landscape creates dramatic underwater scenery.