Koh Rang Ka Chio is a reef site located in the Koh Ngam Islands, offering a relaxed environment for both divers and snorkellers. The site features depths ranging from 3 to 12 metres, with an average of 8 metres, making it well-suited for beginners. Underwater terrain includes reef structures and seagrass beds. Access is by boat only, situated 8 kilometres from the shore. Divers can expect mild currents and visibility between 5 and 15 metres. Water temperatures typically range from 28 to 31C, though temperatures can occasionally drop to 17C, so a 3mm or 5mm wetsuit is recommended for comfort.

Koh Lak Raet is a reef dive located in the Koh Ngam Islands, Thailand, suitable for beginner divers. The site features depths ranging from 5 to 12 metres, with an average depth of 10 metres. Divers can expect mild currents and visibility between 5 and 15 metres. Access to this site requires a boat. The reef structure consists of sharp coral and rocks, necessitating careful buoyancy control to avoid contact. Water temperatures remain between 28 and 31 degrees Celsius throughout the year. Typical dives last approximately 50 minutes. Maintain distance from the reef to prevent injury from sharp surfaces, and ensure any grazes are rinsed promptly after surfacing.

Koh Kula is a shallow reef site located 500 metres from the shore of the Koh Ngam Islands. The site features depths ranging from 2 to 8 metres, with an average depth of 5 metres, making it suitable for beginners. Visibility typically varies between 5 and 15 metres. Access is by boat only, and divers should be aware of boat traffic and the potential for currents to strengthen unexpectedly. Always check conditions with a guide before entering the water and remain close to the vessel. Facilities available at the site include parking, toilets, showers, guided tours, and boat charters.

Hin Lak Ngam is a pinnacle and reef site located 2500 metres from shore in the Koh Ngam Islands. The site features two rocky outcrops with depths ranging from 5 to 20 metres, averaging 15 metres. Divers and snorkellers encounter a variety of coral structures, including staghorn, table, brain, cabbage, and black coral, alongside barrel sponges and anemone beds. Conditions are generally mild, with visibility varying between 5 and 25 metres. Access is by boat only. The site is suitable for beginners and supports night diving. Hazards include potential entanglement, variable visibility, and sharp coral.

Koh Lak Ngam features a combination of reef and pinnacle structures located 800 metres from shore. This site is suitable for beginners, with depths ranging from 5 to 23 metres and an average depth of 15 metres. Divers access the site by boat. Conditions include mild currents and visibility typically between 5 and 10 metres. Water temperatures remain consistent, ranging from 28 to 31C throughout the year. Divers should maintain good buoyancy to avoid contact with sharp coral and rocks, and ensure all equipment is secured to prevent entanglement with loose lines near the reef structures.

Koh Mat Wai Noi is a shallow reef site located in the Koh Ngam Islands, Thailand. Suitable for both divers and snorkellers, the site features depths ranging from 2 to 11 metres with an average of 8 metres. Visibility typically spans 10 to 25 metres, and currents remain mild, making it accessible for beginners. Access is by boat only. Hazards include the presence of jellyfish and sharp coral structures, so protective clothing such as a rash vest or thin wetsuit is recommended. Divers and snorkellers should exercise caution when re-entering the boat. Guided tours are available to assist with navigating the reef environment.

Koh Mat Wai Yai is a shallow reef site located 1000 metres from shore within the Koh Ngam Islands. The site features a gentle reef structure with depths typically ranging between 5 and 8 metres, though the area can reach 15 metres. Access is by boat only. Conditions include mild currents, though these can pick up unexpectedly, and visibility is generally around 5 metres. Divers should maintain neutral buoyancy to avoid contact with sharp coral and rocks. The site is suitable for beginners and supports night diving. Due to variable visibility, early morning dives are recommended to avoid sediment stirred up by boat traffic.

Aow Leuk is a sheltered reef site located at the Koh Ngam Islands, offering shallow depths between 2 and 9 metres. With an average depth of 8 metres and mild currents, it is well suited for beginner divers. Visibility typically ranges from 5 to 10 metres. The site is best approached as a slow, methodical dive, allowing for close observation of the reef environment. Night diving is a notable option here, as it provides opportunities to observe species that are more active after dark. Water temperatures remain warm throughout the year, ranging from 28C to 31C.