Tao Tong is a mixed-environment site located at Koh Nang Yuan, Thailand, featuring a combination of muck substrate, artificial reef structures, and natural reef. With depths ranging from 5 to 9 metres, it is well-suited for beginner divers. The site experiences mild currents and visibility typically between 10 and 20 metres. Divers should be aware of entanglement risks posed by artificial reef structures and exercise caution around blue ringed octopus. Night diving is available at this location. Access is by boat only, and the use of a torch is recommended to observe small creatures within the muck substrate.

Sai Nuan Beach is a reef site located on Koh Tao, offering a peaceful environment for both divers and snorkellers. The site features a shallow reef with depths ranging from 1 to 5 metres, averaging 3 metres. Entry is directly from the shore. Conditions are generally mild with visibility between 5 and 25 metres. Water temperatures remain warm throughout the year, fluctuating between 28C and 31C. The site is suitable for beginners, though visitors should remain aware of boat traffic, sea urchins, and sharp coral. Facilities available at the beach include a cafe, toilets, showers, and equipment rental.

June Juea Bay is a quiet, secluded reef site located on Koh Nang Yuan. The site features a shallow reef structure with depths ranging from 2 to 12 metres, averaging 7 metres. It is accessible via shore entry and is suitable for beginners. Divers and snorkellers can expect mild currents and visibility typically between 10 and 25 metres. Water temperatures remain warm throughout the year, generally between 28 and 31 degrees Celsius. The site is suitable for night diving, with a typical dive duration of 45 minutes. Facilities at the location include a cafe. Be aware of sharp coral when entering or navigating the reef.

Three Rocks is a reef and pinnacle site located 800 metres off the coast of Koh Nang Yuan. The site is suitable for beginners, with an average depth of 5 metres and a maximum depth of 14 metres. Divers can expect mild currents and visibility ranging from 2 to 30 metres. Marine life recorded at the site includes wrasses, sling-jaw wrasse, triggerfish, Jorunna nudibranch, longfin bannerfish, rock cod, golden butterflyfish, pink skunk anemonefish, rabbitfish, long-spined sea urchin, Caribbean barrel sponge, barred soapfish, scissortail sergeant, and sea cucumber. Access is by boat only. Be aware of boat traffic and sea urchins in the area. Night diving is permitted.

Chalok Bay is a shore-entry reef dive located at Koh Nang Yuan, suitable for beginner divers. The site features depths ranging from 5 to 14 metres, with an average of 10 metres. Divers experience mild currents and visibility typically between 10 and 20 metres. Water temperatures remain warm throughout the year, ranging from 28 to 31 degrees Celsius. Hazards include jellyfish, sea urchins, sharp coral, and potentially aggressive triggerfish. Divers should shuffle through the shallows to avoid urchins and maintain awareness of their surroundings. Facilities at the site include parking, toilets, showers, rinse stations, equipment rental, and air fills.

Dive Supply at Koh Nang Yuan features a combination of reef and pinnacle topography suitable for beginner divers. Accessible via shore entry, the site offers depths ranging from 5 to 28 metres with an average of 16 metres. Currents are generally mild, though visibility fluctuates between 5 and 20 metres. Water temperatures remain warm, typically between 28 and 31 degrees Celsius. The site is also open for night diving, which allows for observation of different nocturnal behaviours. Divers should maintain neutral buoyancy to avoid contact with sharp coral and rocks, and remain aware of potential jellyfish in the water.

Buddha Rock, located off Koh Nang Yuan, is a reef site suitable for both snorkellers and beginner divers. The site features depths ranging from 1 to 14 metres with an average of 10 metres and visibility between 10 and 30 metres. Divers and snorkellers frequently encounter wrasses, longfin bannerfish, golden butterflyfish, and blue-barred parrotfish. Less common sightings include bluespotted fantail rays, titan triggerfish, pink skunk anemonefish, and various groupers. The site is accessible by boat or from the shore. Visitors should remain aware of boat traffic and the presence of sharks. Night diving is available through local dive shops, offering a different perspective of the reef.

OneStopDive is a pinnacle and reef site located 5000 metres from Koh Nang Yuan. This site offers a depth range of 14 to 40 metres, with an average depth of 22 metres. Divers must access the site by boat. Conditions include moderate currents and visibility ranging from 5 to 40 metres. Water temperatures remain between 28 and 30 degrees Celsius throughout the year. The site is suitable for intermediate divers, with night diving options available. Hazards include boat traffic, strong currents, and the risks associated with deep diving, such as nitrogen narcosis. Divers should deploy a surface marker buoy before ascending and monitor conditions closely due to potential current shifts.