Western Rocky Island is a diverse dive site in the Surin Islands offering a combination of reef, wall, pinnacle, and cavern topography. Depths range from 5 to 35 metres with an average of 22 metres, making it suitable for advanced divers. Visibility is typically between 20 and 40 metres. The site features cavern sections that present an overhead environment, requiring appropriate training and a torch. Currents are generally moderate but can shift quickly, necessitating careful monitoring and the use of a surface marker buoy. Access is by boat only, and the site is suitable for night diving.

Eagle's Nest is a reef dive site located in the Surin Islands, Thailand. The site is situated in deep water, with depths ranging from 20 to 35 metres. Access is strictly by boat. Visibility at the site is variable, typically ranging between 10 and 30 metres. Currents can also shift, so divers should consult with their boat crew regarding current conditions before entering the water. Due to the depth profile, this site is generally suited for experienced divers. Diving earlier in the day is recommended to take advantage of calmer water conditions and optimal visibility.

Western Rocky is a remote pinnacle system in the Mergui Archipelago, offering a diverse topography of walls, caves, and open reef. Divers can explore depths ranging from 17 to 40 metres, with an average depth of 25 metres. The site is defined by strong, unpredictable currents, making it suitable only for advanced divers with solid buoyancy and drift experience. Visibility varies significantly between 15 and 40 metres. The cave sections present an overhead environment, requiring appropriate training for penetration. Access is exclusively by boat, typically via liveaboard. Divers should remain vigilant regarding potential hazards, including strong currents and the presence of stonefish on the reef structure.

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.

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.

Hin Kop is a boat-access site near Koh Surin featuring a combination of a shallow reef top, a vertical wall, and a deeper pinnacle that descends to 30 metres. Divers typically experience depths between 5 and 30 metres with an average of 15 metres. Visibility ranges from 10 to 30 metres, and water temperatures remain between 28 and 31 degrees Celsius. While currents are generally mild, they can strengthen around the pinnacle and wall with little warning. Divers should maintain proximity to the reef structure for shelter. This site is suited for intermediate divers who possess good buoyancy control and situational awareness.

Northern Rocky is a remote site in the Mergui Archipelago featuring a combination of reef, wall, and drift diving. The topography spans depths of 5 to 35 metres, with an average depth of 20 metres. Due to strong currents and potential surge, this site is strictly for advanced divers. Visibility varies between 5 and 20 metres. Access is exclusively by boat, and divers must be prepared for shifting water movement. Water temperatures remain consistent between 27 and 30 degrees Celsius throughout the year. Night diving is permitted, though the site lacks any surface facilities, requiring all equipment and safety protocols to be managed via the support vessel.

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.