

Best for intermediate divers, 5-40m, boat entry, moderate current.
Koh Bon is a prominent site in the Similan Islands, offering a diverse underwater topography of reefs, walls, and pinnacles. Divers and snorkellers can explore depths ranging from 5 to 40 metres, with visibility typically between 20 and 40 metres. The site is characterised by moderate currents, making drift diving the standard approach. Due to the significant depth and potential for strong currents and surge, this site is suited for intermediate divers with appropriate buoyancy control. Boat access is required for all dives, and night diving is available. Divers should remain close to their guides and plan their drift carefully according to shifting tidal patterns.
8.65500, 97.64430
Current patterns shift with the tide, so check with your guide before the dive and position yourself on the up-current side of pinnacles to hold your position while the fish life comes to you. An advanced open water certification is required here, and it earns its keep at depth.
Accessible via liveaboard or day trip boats from Khao Lak.
Recorded at this site
Depth
5-40m
Visibility
20-40m
Skill Level
Intermediate
Entry
Boat
Boat required
Water Temp
27-30°C
Current
Moderate
Typical Dive
60 min
Best Time
Jan, Feb, Mar, Apr, Dec
No, the site is suited for intermediate divers. An advanced open water certification is required due to the significant depths and potential for strong currents.
The site features a depth range of 5 to 40 metres, with an average depth of 25 metres.
All dives at Koh Bon require boat access.
Yes, the site supports both diving and snorkelling activities.
Hazards include deep water, sharks, strong currents, and surge. Divers should maintain good buoyancy to avoid contact with coral structures.
Diving at Similan Islands 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 Similan Islands in Khao Lak. Water temperatures range from 27°C to 30°C.
The best months to visit Similan Islands in Khao Lak are January, February, March, April, and December. Conditions outside these months can still be good but are less predictable.
Expect moderate currents at Similan Islands in Khao Lak. Good buoyancy control and some drift diving experience is helpful.
Visibility at Similan Islands in Khao Lak typically ranges from 20 metres to 40 metres. Conditions vary with weather, tides, and seasons.