Ao Suthep is a reef and artificial reef site located at Richelieu Rock, Thailand. The site features depths ranging from 3 to 30 metres, with an average depth of 7 metres. Conditions are generally manageable for beginners, with mild currents and visibility typically between 10 and 25 metres. Divers should be aware of sharp coral, including fire coral, and maintain buoyancy to avoid contact. Boat traffic is a hazard, so divers must stay close to their dive flag and check the surface before ascending. The site is accessible only by boat, with a typical dive duration of 45 minutes.

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.

Ko Torinla West at Richelieu Rock features a shallow reef top and a wall descending to 40 metres. Divers can explore the coral garden at 5 metres or engage in a drift dive along the wall. The site is suitable for intermediate divers, with mild currents that can strengthen quickly. Visibility ranges from 10 to 30 metres, and water temperatures remain warm between 28 and 31C. Hazards include sharp coral, lionfish, and deep sections. Night diving is available at this location. Species recorded around this area include various angelfish, moray eels, triggerfish, trevally, sweetlips, wrasses, parrotfish, butterflyfish, and surgeonfish.

Aow Suthep is a reef site located at Richelieu Rock, Thailand, offering a varied topography suitable for beginners. Divers and snorkellers can explore depths ranging from 3 to 30 metres, with an average depth of 15 metres. The site is accessible only by boat and features mild currents, making it a manageable location for those newer to the water. Visibility typically spans 10 to 25 metres, providing clear views of the reef structure and hard corals. To fully appreciate the site, maintain a slow pace to observe the reef inhabitants closely. Water temperatures remain consistent throughout the year, ranging between 28 and 31 degrees Celsius.

Moken Bay at Richelieu Rock provides a gentle environment for reef and muck diving. The site features a mix of hard and soft corals interspersed with sandy patches, with depths ranging from 8 to 18 metres. Visibility varies between 10 and 30 metres, and the mild current allows for slow exploration of the reef structure. This site is suitable for beginners and is accessed exclusively by boat. Divers should remain mindful of sharp coral to avoid contact and must check for boat traffic before surfacing. Typical dives last approximately 45 minutes, offering a steady pace to observe the diverse marine life inhabiting the coral heads and sandy substrate.

Rainbow Rock is a pinnacle and reef site located in the Andaman North region of Thailand. This advanced drift dive features depths ranging from 10 to 21 metres, with visibility typically between 20 and 30 metres. The topography consists of a reef structure adorned with gorgonian fans, soft corals, and anemones. Due to variable and potentially strong currents, boat access is required, and divers should monitor their position closely. Species recorded around this area include various angelfish, wrasses, parrotfish, and groupers. Divers should be prepared for deep water and shifting currents, ensuring they carry a surface marker buoy for safety during their 60-minute dives.

South East Rock is a pinnacle reef located near Richelieu Rock in the Andaman North region of Thailand. This site is accessible only by boat and is suited for intermediate divers due to moderate currents. The topography features depths ranging from 8 to 29 metres, with an average depth of 11 metres. Visibility typically fluctuates between 10 and 30 metres. Water temperatures are warm, ranging from 28 to 31 degrees Celsius throughout the year. Divers should be aware of hazards including sharp coral and strong currents. The site supports night diving, with typical dive durations lasting approximately 50 minutes.

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.