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.

Suntud Samut 4 is an artificial reef wreck located 1500 metres off the Koh Ngam Islands. Resting at depths between 35 and 40 metres, this site is intended for intermediate divers capable of managing deep diving risks, including nitrogen narcosis and overhead environments. Access is by boat only. Visibility is variable, ranging from 5 to 25 metres, and moderate currents are common. Divers should monitor bottom time closely and remain aware of potential entanglement hazards within the structure. Due to the depth and current, this site requires careful planning and a conservative approach to ascent.

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.

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.

Thong Tom Beach is an artificial reef located 400 metres offshore in the Koh Ngam Islands. Designed to enhance the seabed, the site features structures resting in shallow water between 5 and 10 metres, with an average depth of 8 metres. It is well-suited for beginner divers. Conditions are generally manageable with mild currents and visibility ranging from 5 to 12 metres. Divers should exercise caution regarding lionfish, which are known to rest motionless against the artificial structures. The site rewards slow, patient exploration, particularly when observing the small crustaceans and juvenile fish that inhabit the reef crevices.

Aow Thong Tom is a shallow reef site located at the Koh Ngam Islands, offering a straightforward shore entry for both divers and snorkellers. The site reaches a maximum depth of 7 metres, making it well-suited for beginners. Conditions are generally manageable with mild currents, though visibility can fluctuate without warning. Divers and snorkellers should remain aware of boat traffic in the area and maintain surface visibility at all times. Due to the variable visibility, guided tours are recommended to help navigate the reef and locate specific marine life. Water temperatures remain warm throughout the year, ranging between 28C and 31C.