Palm Beach at Koh Haa is a shore-entry reef dive suitable for beginner divers. The site features shallow depths ranging from 2 to 9 metres, with an average depth of 5 metres. Divers can expect mild currents and visibility between 5 and 15 metres. The reef environment supports a variety of reef fish and invertebrates. Due to the presence of sharp coral and rocks, divers should avoid touching the bottom and maintain buoyancy control. The site is accessible year-round, with morning light providing optimal conditions for observing the reef surface. An on-site dive shop provides air fills and equipment rentals.

Koh Haa offers a diverse underwater landscape featuring a reef, pinnacle, and wall. Depths range from 8 to 40 metres, with an average of 20 metres, making this site suitable for intermediate divers. Access is by boat only, situated 15 kilometres from shore. Visibility varies between 10 and 40 metres, and water temperatures remain between 28 and 31 degrees Celsius. Divers should be prepared for moderate currents that can intensify near the pinnacle and wall. The site supports a variety of reef fish and invertebrates typical of the region. Equipment rental is available for those requiring gear.

Ko Ngai is a straightforward reef dive located at Koh Haa, Thailand, well-suited for beginners. The site features depths ranging from 8 to 16 metres, with an average depth of 9 metres. Divers typically experience mild currents and visibility between 6 and 12 metres. Access to the site is by boat only. The water temperature remains warm throughout the year, between 29 and 31 degrees Celsius. Night diving is available, offering a different perspective of the reef. Hazards include the presence of jellyfish, so full wetsuits are recommended, and blacktip reef sharks, which should be observed from a distance.

Koh Ngai is a reef site in the Andaman Sea suitable for beginners and those new to underwater exploration. The reef lies at depths between 8 and 16 metres, with an average depth of 9 metres. Divers and snorkellers experience mild currents and visibility ranging from 5 to 10 metres. The site supports a variety of reef fish and invertebrates typical of the region. Access is available from both shore and boat. Night diving is permitted. Facilities on site include parking, toilets, showers, changing rooms, a rinse station, equipment rental, and air fills. Be aware of sharp coral and rocks throughout the reef, and note that visibility can change quickly.

The Chimney at Koh Bida Nok is a diverse dive site featuring a complex topography of reefs, walls, caverns, and a pinnacle. Divers can explore a drop-off that ranges from 5 to 35 metres, with an average depth of 18 metres. The site is accessed by boat and is suited for intermediate divers due to the presence of overhead environments and moderate currents. Hazards include potential entanglement, sharp coral, and strong currents. Typical dives last approximately 50 minutes, with visibility ranging between 15 and 30 metres. Water temperatures remain warm throughout the year, typically between 28 and 31 degrees Celsius.

The Lagoon at Koh Bida Nok features a diverse underwater topography including a reef, wall, and drop-off, complemented by caverns, swim-throughs, and a pinnacle. This site is accessible by boat and is suitable for beginners, with depths ranging from 1 to 35 metres and an average depth of 10 metres. Divers encounter mild currents and visibility that varies between 5 and 40 metres. The site supports night diving and offers a 50-minute typical dive duration. Hazards to note include boat traffic, deep sections, overhead environments, strong currents, and potential encounters with jellyfish, lionfish, stonefish, and sharks, as well as sharp coral.

Koh Haa #3 is a diverse site featuring a reef, wall, and cave system. The reef extends from shallow water to a depth of 30 metres, with an average depth of 15 metres. The site is accessible only by boat and is suited for intermediate divers due to the overhead environment within the cave. Visibility ranges from 5 to 30 metres, and mild currents are typical. Water temperatures generally remain between 28 and 31C, though thermoclines can cause localized drops in temperature and visibility. Divers should maintain careful buoyancy control to avoid contact with sharp coral and cave walls.

The Cathedral at Hin Daeng and Hin Muang is a complex site featuring a pinnacle, wall, and cavern system. Divers navigate depths ranging from 7 to 36 metres, with an average depth of 20 metres. Access is strictly by boat, as the site is located 20 kilometres from shore. Conditions include mild currents, though surge and strong currents can occur. The visibility fluctuates significantly between 5 and 40 metres. Due to the overhead environment and depth, this site is suited for intermediate divers. Hazards include the deep nature of the site, potential overhead environments, surge, and strong currents.