Ban's Artificial Reef at Koh Nang Yuan is a diverse artificial reef and coral transplant site featuring a wide array of submerged structures. Divers can explore a buoyancy obstacle course, a school house, and various sculptures including a whaleshark, a turtle, rays, and farm animals, alongside sunken vehicles. The site offers depths ranging from 2 to 40 metres, with an average depth of 8 metres. Suitable for beginners, the site experiences mild currents and visibility between 5 and 30 metres. Access is available by both shore and boat. Facilities include equipment rental, air fills, and rinse stations, making it a well-supported location for divers.

Junkyard is an artificial reef located 500 metres off Koh Nang Yuan. This site features a mix of structures and wrecks, offering a varied topography that reaches depths between 3 and 32 metres, with an average depth of 9 metres. Divers can encounter wrasses, rabbitfish, rock cod, golden butterflyfish, sling-jaw wrasse, pink skunk anemonefish, coral trout, longfin bannerfish, barred soapfish, scissortail sergeant, sea cucumbers, snails, and long-spined sea urchins. Conditions are generally mild, though visibility fluctuates between 2 and 30 metres. Access is by boat only. The site is suitable for beginners and supports night diving, with water temperatures ranging from 27 to 31 degrees Celsius.

AlotMeant is a coral reef restoration project located at Koh Nang Yuan. Developed under the guidance of the Department of Marine and Coastal Resources, the site features custom-built structures on the seabed where salvaged coral fragments are attached to encourage growth. This artificial reef environment is suitable for beginners, with depths ranging from 5 to 8 metres and an average depth of 6 metres. Divers can access the site via shore or boat. Conditions are generally mild with visibility between 5 and 15 metres. Water temperatures remain warm throughout the year, typically between 28 and 31 degrees Celsius. Divers should be aware of sharp coral in the area.

Rainbow Reef at Koh Nang Yuan offers an accessible shore entry for both divers and snorkellers. The site features a shallow reef structure ranging from 1 to 6 metres in depth, with an average of 3 metres. Visibility varies between 5 and 25 metres, and water temperatures remain warm throughout the year. Divers and snorkellers can observe species including sling-jaw wrasse, longfin bannerfish, golden butterflyfish, blue-barred parrotfish, rock cod, rabbitfish, scissortail sergeant, moon wrasse, barred soapfish, and long-spined sea urchin. While currents are generally mild, they can strengthen unexpectedly. Visitors should be cautious of sharp coral in the shallows and avoid contact with the reef structure.

Hin Pee Wee is a pinnacle and reef site located 2000 metres from the shore of Koh Nang Yuan. The topography consists of a primary pinnacle starting at 9 metres and descending to a maximum depth of 28 metres, surrounded by scattered large rocks. Divers should be prepared for moderate currents and visibility ranging from 5 to 30 metres. A thermocline is often present near 18 metres. Due to the depth and potential for strong currents, this site is suited for advanced divers. Access is by boat only. The site is suitable for deep, photography, and technical training dives.

HTMS Sattakut is a 48-metre-long wreck resting at a maximum depth of 35 metres, with the top of the tower reaching 18 metres. Located 800 metres from Koh Nang Yuan, this artificial reef requires boat access. Divers encounter species including rock cod, wrasses, bluespotted fantail rays, blue ringed angelfish, porcupinefish, groupers, white eyed morays, magnificent giant anemones, pink skunk anemonefish, longfin bannerfish, golden butterflyfish, sling-jaw wrasse, zoanthids, and soft coral. Conditions feature mild currents and visibility ranging from 3 to 30 metres. Due to the depth and overhead environment, this site is suited for advanced divers. Hazards include decompression, nitrogen narcosis, and thermoclines.

Bio Rock is an artificial reef located 250 metres off the shore of Koh Nang Yuan. This site features depths ranging from 5 to 15 metres, with an average depth of 13 metres. It is suitable for beginners and accessible via boat. Divers can expect mild currents and visibility between 10 and 25 metres. Marine life frequently encountered includes Titan Triggerfish, Bluespotted Fantail Ray, Blue Ringed Angelfish, and various wrasses. Other species such as Harlequin Sweetlips, Golden Butterflyfish, Pink Skunk Anemonefish, and groupers are also present. Hazards at this site include boat traffic, sharp coral, and stonefish. Water temperatures remain warm throughout the year, typically between 28 and 31 degrees Celsius.

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.