Turtle Ledge is a reef site located at Richelieu Rock in the Andaman North region of Thailand. Accessible only by boat, the site features depths ranging from 5 to 30 metres, with an average depth of 18 metres. Divers and snorkellers can expect mild currents and visibility between 10 and 30 metres. Water temperatures remain consistent, typically between 28 and 31 degrees Celsius. The site is suitable for beginners and supports night diving. Hazards include boat traffic and the potential for strong currents. Typical dives last approximately 50 minutes.

Ao Sapparot is a reef site in the Andaman Sea featuring coral patches that reach depths between 2 and 21 metres, with an average depth of 8 metres. The site is accessible by boat and offers mild currents, making it suitable for beginners. Visibility typically ranges from 5 to 15 metres, and water temperatures remain warm throughout the year. Divers and snorkellers should exercise caution regarding sharp coral and submerged rocks, particularly in shallower sections. The site is also available for night diving, which can be rewarding for observing nocturnal activity. A torch is recommended for daytime dives to explore the shadows within the coral patches.

Ao Park Gard is a reef site located at Richelieu Rock in the Andaman North region of Thailand. Accessible only by boat, the site features depths ranging from 5 to 20 metres with an average depth of 20 metres. Divers and snorkellers can expect mild currents and visibility between 5 and 10 metres. The water temperature remains warm, typically between 28 and 31 degrees Celsius. The site is suitable for beginners and supports night diving, with typical dive durations of 60 minutes. Hazards include sharp coral. Species recorded around this area include various angelfish, wrasses, parrotfish, and moray eels.

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.

Hin Kong is a reef dive site located near Koh Surin, Thailand. The topography consists of hard corals extending from shallow depths down to 30 metres, with an average depth of 15 metres. This site is suitable for beginners, who can remain in the shallower 5 to 10 metre range to build confidence. Access is by boat only, and divers should be prepared for moderate currents that can shift quickly. Visibility typically ranges between 10 and 30 metres. Divers should exercise caution regarding stonefish on the bottom and maintain close proximity to their guide due to variable current and visibility conditions.

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.

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.