Ao Chak is a reef dive site in the Andaman Sea, accessible only by boat. The reef structure extends from shallow depths down to 35 metres, with an average depth of 12 metres. The topography features staghorn, branch, and bush corals. Visibility varies between 5 and 30 metres, and water temperatures remain warm, ranging from 28 to 31 degrees Celsius. While currents are generally mild, they can strengthen unexpectedly. Divers should maintain a safe distance from the reef to avoid sharp coral. Guided tours are recommended for navigation, as conditions can shift and local knowledge assists in locating resting areas.

Stork Island, or Koh Chi, offers a diverse underwater environment featuring reef slopes, a wall, and pinnacles. Divers typically explore depths between 18 and 30 metres, with visibility ranging from 10 to 30 metres. The site is suited for intermediate divers due to moderate currents that can strengthen quickly around the wall and pinnacles. Boat access is required to reach this location, which is situated 50 kilometres from shore. The topography supports a variety of marine life, including reef sharks, which should be observed calmly from a distance. The site is also suitable for night diving, with drift sections providing opportunities to observe hunting activity.

Walkers Reef is a marine site located at Richelieu Rock, Thailand. This reef site is accessed exclusively by boat and is suited for intermediate divers. The site maintains an average depth of 11 metres, with visibility typically ranging between 10 and 25 metres. Divers should be aware of moderate currents and potential hazards including boat traffic and sharp coral. Water temperatures remain warm throughout the year, fluctuating between 28C and 31C. A typical dive at this location lasts approximately 45 minutes.

Ao Mae Yai is a shallow reef site in the Andaman Sea, ideal for beginners and those building underwater confidence. The site features depths between 5 and 15 metres with an average of 10 metres. Divers experience mild currents and visibility ranging from 10 to 30 metres. The reef structure supports a variety of corals, including black, table, disc, lettuce, branch, and soft corals. Reef fish, crustaceans, and various invertebrates inhabit the reef. Access is by boat only, and divers should be aware of boat traffic. Always deploy a surface marker buoy when surfacing and remain with your guide to ensure visibility to passing vessels.

Richelieu Rock is a prominent submerged pinnacle located in the Andaman North region of Thailand. This reef site features a depth range of 5 to 30 metres, with an average depth of 15 metres. It is suitable for intermediate divers and snorkelers, though access requires a boat due to its distance from the shore. Conditions vary, with visibility typically ranging from 10 to 30 metres and moderate currents present. Hazards include boat traffic, potential for low visibility, and strong currents. Guided tours and boat charters are available for those visiting this site, which also supports night diving.

J-Spot is a reef dive site located 2000 metres from shore at Richelieu Rock. The site features hard coral structures and ranges in depth from 5 to 21 metres, with an average depth of 12 metres. It is accessible by boat and is suitable for beginners due to the mild currents. Visibility typically ranges between 15 and 25 metres, and water temperatures remain warm throughout the year. Divers are encouraged to explore the shallower sections of the reef during safety stops, where small invertebrates often inhabit the coral rubble.

Hin Pratumba is a reef dive located near Richelieu Rock in Thailand. The site features depths ranging from 18 to 30 metres, with an average depth of 18 metres. Divers can expect mild currents and visibility typically between 15 and 30 metres. Water temperatures remain warm throughout the year, fluctuating between 28C and 31C. Due to potential surge, which can push divers toward the reef structure, maintaining neutral buoyancy is essential. Guided tours are recommended for first-time visitors to help navigate the reef layout effectively. Divers should remain cautious of stonefish and lionfish resting on or near the reef, and avoid touching coral surfaces for stability.

Koh Bon is a sheltered reef site in the Andaman Sea, offering a manageable environment for beginner divers. The reef structure extends from a shallow depth of 2 metres down to 18 metres, with an average depth of 8 metres. Divers can expect mild currents and visibility ranging from 5 to 25 metres. The site features diverse coral formations, including soft, table, branch, black, lettuce, and disc corals. Access is by boat only, with dives typically lasting 45 minutes. Water temperatures remain consistent between 28 and 31 degrees Celsius. Divers should remain cautious of sharp coral edges, jellyfish in the water column, and stonefish camouflaged against the reef surface.