

Best for beginner divers, 5-35m, boat entry, moderate current.
Three Trees is a reef and drift dive site located at Koh Bon, Thailand. The site features depths ranging from 5 to 35 metres, with an average depth of 18 metres. Access is by boat only, and the site is suitable for beginners, though the moderate current requires attention. Visibility varies between 10 and 40 metres. Water temperatures typically range from 27 to 30C, though thermoclines can cause temperatures to drop to 21C in December. Hazards include deep water, sea urchins, sharks, and strong currents. Guided tours are recommended due to the potential for currents to push divers away from the reef.
8.67483, 97.64690
Book a guided tour rather than going independent on your first visit here, as the current can push you off the reef if you're not familiar with the site's layout. A 3mm to 5mm wetsuit will keep you comfortable across the full temperature range.
Accessible by boat as part of Similan Islands diving trips.
Recorded at this site
Depth
5-35m
Visibility
10-40m
Skill Level
Beginner
Entry
Boat
Boat required
Water Temp
27-30°C
Current
Moderate
Typical Dive
45 min
Best Time
Jan, Feb, Mar, Apr, Nov, Dec
Yes, the site is suitable for beginners, though the moderate current requires divers to stay close to their guide and be prepared to fin against the flow.
The depth ranges from 5 to 35 metres, with an average depth of 18 metres.
This is a boat-only site located 65 kilometres from shore.
Yes, the site is suitable for both diving and snorkelling, with shallower sections starting at 5 metres.
Hazards include deep water, sea urchins, sharks, and strong currents that can strengthen quickly.
Diving at Three Trees in Khao Lak requires the following certifications: Open Water. Always dive within your training limits.
Yes, equipment rental is available at or near Three Trees in Khao Lak. Contact local dive operators for specific gear availability and prices.
A rashguard or 2mm shorty is recommended for diving at Three Trees in Khao Lak. Water temperatures range from 27°C to 30°C.
The best months to visit Three Trees in Khao Lak are January, February, March, April, November, and December. Conditions outside these months can still be good but are less predictable.
Expect moderate currents at Three Trees in Khao Lak. Good buoyancy control and some drift diving experience is helpful.
Visibility at Three Trees in Khao Lak typically ranges from 10 metres to 40 metres. Conditions vary with weather, tides, and seasons.