Mooring Bay at Koh Bon is a reef site offering depths between 5 and 30 metres, with an average depth of 15 metres. Access is by boat only, as the site is located 64 kilometres from shore. Divers and snorkellers can expect mild currents and visibility ranging from 20 to 40 metres. Water temperatures typically remain between 28 and 30 degrees Celsius, though thermoclines may occasionally cause brief drops to 26 or 27 degrees Celsius. The site is suitable for beginners and supports night diving, with typical dive durations around 50 minutes. Hazards include boat traffic, jellyfish, lionfish, stonefish, and sharp coral.

Beacon Reef at Koh Bon offers a dual experience featuring both a coral reef and a wreck. The site ranges from 5 to 40 metres in depth, with an average of 15 metres suitable for beginners in the shallower sections. Visibility typically spans 10 to 30 metres. Access is by boat, and divers should be prepared for moderate currents. The wreck provides an overhead environment, requiring caution and proper training for entry. Hazards include sharp coral, deep sections, and the presence of stonefish and triggerfish. Night diving is available, allowing for a different perspective of the reef structure.

Whaleback Rock at Koh Bon is a reef and pinnacle site offering depths between 5 and 20 metres. This location is accessible only by boat and is suitable for beginner divers. Underwater conditions are generally mild, with visibility ranging from 10 to 30 metres. Water temperatures remain consistent throughout the year, typically between 28 and 30 degrees Celsius. Divers should be aware of potential hazards including boat traffic, jellyfish, sea urchins, and sharp coral. Facilities available at the site include equipment rental, air fills, and guided tours.

Koh Bon is a prominent site in the Similan Islands, offering a diverse underwater topography of reefs, walls, and pinnacles. Divers and snorkellers can explore depths ranging from 5 to 40 metres, with visibility typically between 20 and 40 metres. The site is characterised by moderate currents, making drift diving the standard approach. Due to the significant depth and potential for strong currents and surge, this site is suited for intermediate divers with appropriate buoyancy control. Boat access is required for all dives, and night diving is available. Divers should remain close to their guides and plan their drift carefully according to shifting tidal patterns.

Waterfall Bay is a reef site located at Koh Bon, Thailand, offering a gentle environment suitable for beginner divers. The site features depths ranging from 10 to 20 metres with an average of 14 metres. Visibility typically spans 15 to 20 metres, complemented by mild currents. Access is by boat only. The site is also available for night diving. Hazards include the presence of sharks and jellyfish; divers should scan the water before entry and maintain distance from sharks. Species recorded around this area include various wrasses, groupers, lionfish, moray eels, and triggerfish, alongside invertebrates such as octopus and ghost pipefish.

Turtle Rock at Koh Bon is a reef dive characterised by mild currents suitable for beginners. The site features depths ranging from 10 to 30 metres, with an average depth of 15 metres. Access is by boat only, and divers should remain mindful of sharp coral and boat traffic. Visibility typically spans 10 to 30 metres, though a phenomenon known as the Green Monster may reduce visibility and lower temperatures below 15 metres. The site is available for night diving, which offers a different perspective of the reef structure. Divers are advised to monitor their depth and stay close to their guide throughout the 50-minute typical dive duration.

Snapper Alley is a reef site located at Koh Bon, Thailand, featuring depths between 5 and 20 metres with an average of 12 metres. The topography consists of hard coral formations and sandy patches. Divers experience mild currents and visibility ranging from 10 to 30 metres. This site is suitable for beginners and supports night diving. Boat access is required to reach the location, which is situated 50 kilometres from shore. Hazards include lionfish and sharks; maintain a respectful distance from the reef and avoid touching rocky crevices or the bottom to ensure safety.

Three Trees is a reef and drift dive site located at Koh Bon, Thailand. The site features depths ranging from 5 to 35 metres, with an average depth of 18 metres. Access is by boat only, and the site is suitable for beginners, though the moderate current requires attention. Visibility varies between 10 and 40 metres. Water temperatures typically range from 27 to 30C, though thermoclines can cause temperatures to drop to 21C in December. Hazards include deep water, sea urchins, sharks, and strong currents. Guided tours are recommended due to the potential for currents to push divers away from the reef.