Underwater Way at Koh Racha Yai features a diverse underwater landscape comprising reef, pinnacle, wall, and drift sections. Divers can explore depths ranging from 8 to 30 metres, with an average depth of 15 metres. Visibility typically spans 10 to 30 metres. The site is subject to moderate currents, which can shift quickly, requiring solid buoyancy control. Water temperatures remain between 28 and 30C, though thermoclines may occur at depth. Due to the potential for strong currents and boat traffic, divers should monitor their position against the reef and use a surface marker buoy during ascent. This site is best suited for intermediate divers.

Sea Bees at Koh Racha Yai offers a diverse underwater landscape featuring a combination of reef, wall, pinnacle, and cave formations. Accessible only by boat, the site is suitable for beginners, with depths ranging from 10 to 30 metres and an average depth of 20 metres. Visibility typically spans 15 to 30 metres, and currents are generally mild. Water temperatures remain between 28 and 30 degrees Celsius, though cold water intrusions of 25 degrees Celsius can occur in February and March. Night diving is available, and divers should be mindful of boat traffic, sharp coral, sea urchins, and stonefish while maintaining proximity to their guide.

WaterPro is a reef site located 1000 metres offshore at Koh Racha Yai, Thailand. The site features a depth profile ranging from 5 to 30 metres, with an average depth of 15 metres. Divers access the reef via boat, which is required due to the distance from shore. Conditions include moderate currents and visibility typically between 20 and 40 metres. Water temperatures remain consistent between 28 and 30 degrees Celsius. Due to the presence of surge, sharp coral, and potential for unpredictable currents, this site is suited for intermediate divers with strong buoyancy control. Surface boat traffic requires caution during entry and exit.

South Point at Koh Racha Yai offers reef diving for intermediate divers, with depths ranging from 8 to 25 metres. The site is accessed by boat and features moderate currents that can strengthen quickly, requiring good buoyancy control. Divers can explore the reef structure, which provides shelter from water movement. Marine life recorded at this site includes the laced moray, wrasses, vagabond butterflyfish, porcupinefish, crabs, azure sea stars, sergeants, rabbitfish, and various snails. Visibility typically spans 15 to 30 metres. Due to the current patterns, booking a guided tour is recommended to ensure safe entry and drift planning.

Dive Asia is a reef and pinnacle site located off Koh Racha Yai, Thailand. The site offers depths ranging from 8 to 30 metres, with an average depth of 15 metres. Access is by boat, and the site is suited for intermediate divers comfortable with moderate currents. Visibility varies between 5 and 25 metres. Divers should be aware that strong currents can develop quickly, particularly in deeper sections. The site features an on-site dive shop providing equipment rental and air fills. Typical dive times are approximately 45 minutes. Divers are advised to monitor their position against the reef and use an SMB when surfacing due to boat traffic.

Karon Beach at Koh Racha Yai offers a shallow reef environment suitable for beginners, with depths ranging from 3 to 8 metres and an average of 5 metres. Access is via a shore entry, making it convenient for both divers and snorkellers. Conditions are generally mild, though visibility can fluctuate between 8 and 30 metres. Divers should be aware of potential hazards including rip currents, surf, jellyfish, sea urchins, and sharp coral. Thermoclines may occur, occasionally bringing cooler water temperatures than the typical 29 to 30 degrees Celsius. The site supports night diving and is well-serviced by local facilities including equipment rental, air fills, and rinse stations.

Kata Reef at Koh Racha Yai is a shore-accessible site featuring a combination of natural reef, artificial reef structures, and wall topography. Located 50 metres from the shore, the site offers shallow diving with depths ranging from 2 to 15 metres and an average depth of 9 metres. Conditions are generally mild, though divers should be aware of potential surf, surge, and variable visibility between 3 and 20 metres. The site is suitable for beginners and supports night diving, with typical dive times around 60 minutes. Facilities available nearby include equipment rental, air fills, and guided tours.

Koh Pu is a reef site located off Koh Racha Yai, Thailand, offering a straightforward experience for divers. The site features depths ranging from 2 to 15 metres with an average of 10 metres, making it suitable for beginners. Access is by boat, and the site is characterised by mild currents and visibility ranging from 5 to 30 metres. Divers should be aware of potential hazards including jellyfish, sharp coral, and stonefish. Exposure protection is recommended to avoid cuts from the reef. Guided tours are available through local dive shops, which are recommended for navigating the area effectively.