Diving in Koh Samui - Dive Sites

Koh Nang Yuan

The small islet of Koh Nang Yuan connected to Koh Tao by a thin strip of white sand is surrounded by several interesting dive sites and is also a very popular place for snorkeling. It’s a very relaxed area to dive and chill out on the boat between dives. Visibility can drop at times and big fish visits are rare but there are plenty of reef fish to charm divers.

Nang Yuan Pinnacle, between Koh Nang Yuan and Koh Tao is like a mini version of Sail Rock. It starts at just two metres below the surface and is only a few fin kicks away from the eastern Koh Tao coast with many interesting boulders with nooks and crannies to explore and the occasional swim through.

Moorish Idols, angelfish and oriental sweetlips are some of the common inhabitants here. Also keep an eye out for octopus hiding in the rocks and, if you see a cuttlefish, look around for the mate who is probably nearby as they often travel in pairs.

The two dive sites of 'White Rock' and the 'Twins' are just south of Koh Nang Yuan. White Rock has a good selection of fish species including a rather aggressive titan triggerfish. The dive site starts at about one metre below the surface and goes down to a depth of 20 metres. Twins, a similar site to White Rock, is actually two rocks starting at 6 metres and going down to 18 metres. There are lots of anemones here with their resident families of clownfish.

Another nearby site, 'Green Rock', has an impressive selection of swim-throughs and overhangs where you can expect to see moray eels, pufferfish, scorpionfish, batfish, pipefish, groupers and sea snakes.

• Samui tourist information

• Map of Koh Samui

Koh Nang Yuan Reef Basics: Beginners and relaxed diving. Also good for snorkelling.
Depth: 5 - 25m
Visibility: 5 - 15m
Currents: Gentle
Surface Conditions: Normally calm
Water Temperature: 27 - 29°C
Experience Level: Beginner - intermediate
Number of dive sites: 5
Diving Season: All year round
Distance: 1 km from Sairee Beach, Koh Tao; 100 km from Samui (2 hours by speedboat)
Access: Day trips from Koh Samui by speedboat

Use our short form to grab your best options
• Thailand scuba diving enquiries

• Back to Samui diving sites index