Koh Bon Pinnacle
Koh Bon Pinnacle, called Hin Luang ('yellow rock') after its carpet of yellow soft corals, is a submerged pinnacle just north of Koh Bon. Its top is at about 18 m and the walls fall to 40–50 m, covered in sea fans, whip corals and barrel sponges. Napoleon wrasse, trevally and barracuda circle the top; leopard sharks, marble rays and eagle rays are seen deeper. With no mooring line and exposed currents, it requires a negative entry.
Facts
- Region: Thailand – Similan & Surin
- Area: Koh Bon & Koh Tachai
- Depth: 18–45 m
- Level: advanced
- Current: strong
- Type: pinnacle, drift
- Coordinates: 8.8322, 97.7955
- Highlights: yellow soft coral, sea fans, leopard shark, marble ray, eagle ray, manta ray, Napoleon wrasse, trevally, barracuda
- Tips: Descend immediately with an empty BCD or the current will carry you off the pinnacle. Watch your depth and no-deco time.