

Best for advanced divers, 8-40m, boat entry, strong current.
Shark Fin Reef is a demanding dive site located at Koh Bon, Thailand, featuring a dramatic pinnacle, walls, drop-offs, and a canyon. The site reaches depths of 8 to 40 metres, with an average depth of 25 metres. Visibility is excellent, typically ranging between 20 and 40 metres. Due to strong currents and potential down currents near the walls, this site is suitable only for advanced divers. Access is by boat only, and divers must be prepared for deep diving conditions. Divers should monitor their depth and bottom time closely to avoid decompression issues and use a surface marker buoy to signal boats in the area.
8.50946, 97.66448
Plan your dive around slack water if you can get local intel on the tidal window, as the current here can switch direction with little warning and down currents are a real risk near the drop-off. Keep a close eye on your depth and bottom time from the moment you descend, as the wall makes it easy to drift deeper than intended.
Located off the south east side of Island 3 in the Similan Islands.
Recorded at this site
Depth
8-40m
Visibility
20-40m
Skill Level
Advanced
Entry
Boat
Boat required
Water Temp
27-30°C
Current
Strong
Typical Dive
50 min
No, this site is for advanced divers only due to strong currents, potential down currents, and significant depths.
The site ranges from 8 to 40 metres, with an average depth of 25 metres.
This is a boat-only dive site located 3000 metres from shore.
No, this site is intended for scuba diving due to the depth and strong current conditions.
Hazards include strong currents, down currents, deep diving risks such as nitrogen narcosis and decompression, sharp coral, and boat traffic.
Diving at Shark Fin Reef in Khao Lak requires the following certifications: Open Water, Advanced. Always dive within your training limits.
A rashguard or 2mm shorty is recommended for diving at Shark Fin Reef in Khao Lak. Water temperatures range from 27°C to 30°C.
Shark Fin Reef in Khao Lak can have strong currents. Advanced experience with drift diving and current navigation is recommended.
Visibility at Shark Fin Reef in Khao Lak typically ranges from 20 metres to 40 metres. Conditions vary with weather, tides, and seasons.