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.

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.

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.

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.

Freedom Beach is a shallow reef located at the southern tip of Koh Nang Yuan. Divers and snorkellers can access this site directly from the shore. The reef, situated near Buddha Rock, reaches depths between 2 and 14 metres with an average of 7 metres. Conditions are generally mild, though visibility fluctuates between 5 and 20 metres. Marine life frequently observed includes Titan Triggerfish, Longfin Bannerfish, Golden Butterflyfish, and Blue-barred Parrotfish. Divers may also encounter Bluespotted Fantail Rays, Blue Ringed Angelfish, and various wrasses. Hazards at this site include jellyfish, sharks, and sharp coral. Facilities available include toilets, showers, and gear storage.

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.

Shark Bay at Koh Nang Yuan is a shallow reef and seagrass site suitable for both diving and snorkelling. The site features depths ranging from 3 to 8 metres, with an average depth of 5 metres. Access is via the shore, and conditions are generally mild, though visibility can fluctuate between 5 and 30 metres. The area is well-suited for beginners and supports night diving. Facilities available at the location include parking, toilets, and a cafe. Divers and snorkellers should remain aware of potential hazards, including boat traffic, jellyfish, and sharp coral.

Southwest Pinnacles is a series of underwater rock formations located 7000 metres from Koh Nang Yuan. The site features a combination of pinnacles, walls, and reef structures reaching depths between 5 and 30 metres, with an average depth of 20 metres. Due to the location, this site is suited for advanced divers. Conditions are variable, with visibility ranging from 2 to 20 metres and strong currents often present. Divers should be aware of potential hazards including surge, low visibility, and the presence of stonefish and sharks. Boat access is required for all dives at this location.