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.

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.

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.

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 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.

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.

Tao Bay is a shore-entry dive site located at Richelieu Rock in the Andaman North region of Thailand. The site features shallow, calm water, making it a practical location for those new to diving. Water temperatures remain warm throughout the year, typically ranging between 28 and 31 degrees Celsius. Divers should be aware that currents at this site are variable and can shift throughout the day. It is recommended to check local conditions before entering the water. As a shore-entry site, it allows divers to manage their own pace, though visitors should verify available facilities on-site prior to arrival.

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.