

Best for beginner divers, 2-18m, boat entry, mild current.
Koh Bon is a sheltered reef site in the Andaman Sea, offering a manageable environment for beginner divers. The reef structure extends from a shallow depth of 2 metres down to 18 metres, with an average depth of 8 metres. Divers can expect mild currents and visibility ranging from 5 to 25 metres. The site features diverse coral formations, including soft, table, branch, black, lettuce, and disc corals. Access is by boat only, with dives typically lasting 45 minutes. Water temperatures remain consistent between 28 and 31 degrees Celsius. Divers should remain cautious of sharp coral edges, jellyfish in the water column, and stonefish camouflaged against the reef surface.
9.41110, 97.87000
Keep a close eye on the bottom as you descend, particularly around rocky reef sections where stonefish are notoriously difficult to spot. Wearing dive boots and moving slowly near the reef will help you avoid both stonefish and sharp coral.
The site is part of the Mu Koh Similan National Park and is closed to the public annually from mid-May to mid-October.
Recorded at this site
Depth
Up to 18m
Visibility
5-25m
Skill Level
Beginner
Entry
Boat
Boat required
Water Temp
28-31°C
Current
Mild
Typical Dive
45 min
Best Time
Jan, Feb, Mar, Apr, Nov, Dec
Yes, the site is well suited to divers who are new to the sport due to its sheltered nature and manageable depths.
The reef runs from a shallow 2 metres down to 18 metres, with an average depth of 8 metres.
Koh Bon is located 5000 metres from shore and requires boat access.
Hazards include sharp coral edges, jellyfish in the water column, and stonefish that blend into the rocky and coral surfaces.
Diving at Koh Bon in Phang Nga requires the following certifications: Open Water. Always dive within your training limits.
A rashguard or 2mm shorty is recommended for diving at Koh Bon in Phang Nga. Water temperatures range from 28°C to 31°C.
The best months to visit Koh Bon in Phang Nga are January, February, March, April, November, and December. Conditions outside these months can still be good but are less predictable.
Koh Bon in Phang Nga typically has mild currents that most divers can handle comfortably.
Visibility at Koh Bon in Phang Nga typically ranges from 5 metres to 25 metres. Conditions vary with weather, tides, and seasons.