Banana Bay at Koh Racha Noi offers a diverse underwater landscape featuring reefs, pinnacles, walls, and drift sections. Suitable for all skill levels, the site provides depths ranging from 2m to 45m with an average of 15m. Divers and snorkellers can expect visibility between 10m and 30m, with mild currents typical of the area. Access is strictly by boat, located 20km from the shore. Water temperatures remain warm, generally between 29C and 31C. Hazards to be aware of include boat traffic, potential entanglement, sharp coral, stonefish, and strong currents. Guided tours and boat charters are available for those visiting this site.

Camera Bay, located on the north-western section of Koh Racha Noi, offers a diverse diving environment ranging from 5 to 30 metres. The site features a mix of natural reef and artificial structures. The inner bay is typically calm and free of currents, making it suitable for beginner divers. Beyond the bay, the topography transitions to rocky edges where divers may encounter mild currents and drift conditions. Visibility at this site ranges from 10 to 40 metres, with water temperatures consistently between 29 and 31C. Access to Camera Bay is by boat only.

South Tip at Koh Racha Noi offers a varied underwater landscape featuring a wall, pinnacle, and artificial reef. This boat-access site ranges from 3 to 25 metres in depth, with an average of 15 metres. Visibility typically spans 10 to 40 metres. Divers should be prepared for moderate currents, which can shift quickly and occasionally produce downward pulls. Due to these conditions, the site is best suited for experienced divers who can manage depth and drift. Species recorded around this area include various lionfish, triggerfish, moray eels, and groupers. Always confirm current conditions with your boat captain before descending and plan your dive around slack water when possible.

Ashitol Bay is a reef dive located at Koh Racha Noi, Thailand, accessible only by boat from Koh Phuket. The site features depths ranging from 15 to 30 metres, making it suitable for divers with an Open Water certification. Divers can expect mild currents and visibility between 10 and 25 metres. Water temperatures typically range from 29 to 31C, though the area can experience thermoclines, so a wetsuit is recommended. A typical dive lasts approximately 45 minutes. As conditions can vary, it is advisable to check locally for current boat schedules and seasonal variations before planning a trip.

South Tip at Koh Racha Noi is a reef and drop-off site characterised by its topography and potential for strong currents. The site offers a wide depth range from 3 to 80 metres, with an average depth of 12 metres. Access is strictly by boat, and the site is suited for intermediate divers due to the challenging current conditions. Visibility varies between 10 and 40 metres. Species recorded around this area include Indian Lionfish, Moorish Idol, Porcupinefish, Peacock Mantis Shrimp, and Giant Moray. Facilities available for divers include air fills, equipment rental, and guided tours.

Manta Bay at Koh Racha Noi offers a diverse underwater environment featuring a reef, wall, and artificial reef. Suitable for beginners, the site reaches depths of 3 to 17 metres with an average of 15 metres. Access is by boat only. Visibility varies significantly from 10 to 40 metres. While currents are generally mild, divers should remain alert for occasional down currents. Species recorded around this area include peacock mantis shrimp, giant moray, Indian lionfish, pharaoh cuttlefish, sea krait, snowflake moray, zebra lionfish, reef stonefish, coral grouper, titan triggerfish, spotfin lionfish, moorish idol, porcupinefish, and melon butterflyfish. Always monitor for jellyfish and exercise caution near the seabed to avoid stonefish.

Northern Tip at Koh Racha Noi is a demanding dive site consisting of a series of pinnacles, walls, and drop-offs. The site reaches depths of 40 metres with an average of 20 metres. Due to strong currents and potential down currents, this location is suitable only for advanced divers. Access is by boat only, and the site is not suitable for snorkelling. Visibility ranges from 5 to 30 metres, and water temperatures remain between 29 and 31 degrees Celsius. Divers should monitor their depth closely and deploy a surface marker buoy before ascent to assist with boat pick-up in areas prone to surface swell.

Koh Racha Noi offers diverse topography including reefs, walls, pinnacles, and drop-offs. The site features a shallow bay ranging from 3 to 10 metres, suitable for training, while the outer sloping reef extends to depths of 30 metres. Accessible only by boat, the site is suited for intermediate divers due to moderate currents and potential down currents. Visibility typically ranges from 10 to 40 metres, though thermoclines can occasionally affect clarity. Water temperatures remain warm, averaging between 28 and 30 degrees Celsius. Species recorded around this area include various reef fish, moray eels, and triggerfish. Divers should be aware of deep water and strong currents.