Secret Reef in the Koh Rong Archipelago is a challenging site requiring an Advanced Open Water certification. The topography consists of a reef structure reaching depths of 28 metres, characterised by sharp coral and rock formations that necessitate precise buoyancy control. Divers must access the site by boat. Conditions are variable, with visibility ranging from 5 to 25 metres and strong currents that fluctuate with tidal movement. Water temperatures remain consistent between 29 and 31 degrees Celsius throughout the year. Due to the presence of sharp coral and strong currents, divers should coordinate closely with their boat crew to assess conditions before entry.

Koh Rong Corner is a reef site in Cambodia offering a drift diving experience suitable for beginners. The topography consists of a reef edge where depths typically range from 8 to 11 metres, though the reef drops to 30 metres in deeper sections. Divers should expect variable currents that can increase quickly, requiring close attention to buoyancy and positioning. Visibility is highly changeable, fluctuating between 5 and 25 metres. Water temperatures remain warm, between 29 and 31 degrees Celsius throughout the year. Access to this site is by boat only, and local facilities provide air fills, equipment rental, and boat charters.

Last Tree is a drift and reef dive site located off Koh Rong Samloem. The site reaches a maximum depth of 13 metres and is suitable for beginners. Divers access the location by boat, navigating mild currents that vary in visibility between 5 and 25 metres. Water temperatures remain consistent throughout the year, ranging from 29 to 31 degrees Celsius. Night diving is permitted at this location. Divers should exercise caution regarding boat traffic and navigation, ensuring they remain aware of their position to avoid restricted conservation areas located to the south.

Corral is a shallow site located 200 metres off the shore of Koh Rong Samloem, offering a combination of muck and reef topography. Depths range from 5 to 11 metres, making it suitable for beginner divers. Visibility is typically between 5 and 10 metres, requiring divers to focus on the substrate. Water temperatures remain warm, between 29 and 31 degrees Celsius. Access is by boat only. Divers should be aware of moderate currents and plan their dives accordingly. Hazards include jellyfish, sea urchins, and low visibility. Night diving is permitted at this location, allowing for closer inspection of the bottom environment.

Middle Tree is a coral reef site situated within the Koh Rong Archipelago Marine Protected Area. As a designated conservation zone, the area is primarily managed for research purposes. The reef features depths ranging from 5 to 14 metres, with an average depth of 10 metres. Access to the site is by boat, as it is located 5 kilometres from the shore. Divers can expect mild currents and visibility fluctuating between 5 and 25 metres. Water temperatures remain warm throughout the year, typically between 29 and 31 degrees Celsius. Hazards at this location include boat traffic and sharp coral structures.

Coral Bay is a reef site located 1500 metres off the coast of Koh Rong Samloem. The reef topography extends from the shallows to a maximum depth of 25 metres, with an average depth of 10 metres. This site is accessible only by boat and features mild currents, making it suitable for beginners. Visibility varies significantly from 5 to 25 metres. Water temperatures remain consistent between 29 and 31 degrees Celsius throughout the year. Divers should be cautious of sharp coral and rocks, as well as boat traffic near the surface. Night diving is available at this location, and dive shop facilities are provided for charter services.

Corner Bar is a reef dive site located 1500 metres off the coast of Koh Rong Samloem. Accessible by boat, the site features depths ranging from 7 to 16 metres with an average of 12 metres. Divers can expect mild currents, though strong currents are a potential hazard. Visibility at the site fluctuates between 5 and 25 metres, and water temperatures remain warm throughout the year, typically between 29 and 31 degrees Celsius. The site is suited for intermediate divers, with typical dive times lasting around 50 minutes. Air fills and equipment rental facilities are available for those planning a visit.

Koh Kon is a reef site located off Koh Rong Samloem, Cambodia, suitable for beginner divers and snorkellers. The site features a depth range of 12 to 14 metres, with an average depth of 10 metres. Access is by boat only. Conditions are generally manageable with mild currents and visibility ranging from 10 to 25 metres. Water temperatures remain warm, between 29 and 31 degrees Celsius throughout the year. The site is also available for night diving. Divers should remain alert for surge and swell, which can pick up unexpectedly and affect comfort on the reef. Ensure all equipment is prepared before departure as there are no on-site facilities.