Koh Ran is a reef site located in the Koh Ngam Islands, Thailand, accessible only by boat. The reef structure descends from 10 metres to a maximum depth of 30 metres, with an average depth of 12 metres. Divers and snorkellers can expect mild currents and visibility ranging from 10 to 25 metres. Surge and swell can develop, which may impact boat entry and exit; it is recommended to time these movements carefully. This site is suited for intermediate divers, with typical dives lasting around 45 minutes. Water temperatures remain warm throughout the year, ranging between 28 and 31 degrees Celsius.

Koh Khai is a reef site located in the Koh Ngam Islands, suitable for both beginners and snorkellers. The site features depths ranging from 1 to 17 metres, with an average depth of 8 metres. Access is by boat only, and the area experiences mild currents. Visibility typically fluctuates between 2 and 12 metres. Due to active boat traffic, divers and snorkellers should remain close to their group and visible while on the surface. In the shallows, avoid contact with the reef as the coral and rocks are sharp. Water temperatures remain warm throughout the year, ranging from 28C to 31C.

Sam Laem is a reef dive site located at the Koh Ngam Islands, named for its distinctive underwater topography featuring three pillars arranged in a triangular formation. The site reaches a maximum depth of approximately 27 to 30 metres and offers visibility up to 20 metres. Access is by boat only, and the site is suited for intermediate divers due to moderate currents and depth. Divers should remain aware of boat traffic in the area. Water temperatures are consistent, ranging between 28C and 31C throughout the year.

Ao Tien is a shallow reef located in Chumphon, Thailand, offering a relaxed environment for divers. The site features depths ranging from 3 to 10 metres, making it suitable for beginners and those seeking a slow-paced dive. The reef structure includes staghorn, brain, and flower pot coral formations, alongside anemones and rabbit sea slugs. Access to the site is by boat. Conditions are generally comfortable with mild currents, though visibility can vary significantly from 5 to 30 metres. Divers are advised to visit in the morning when visibility is typically at its best and boat traffic is reduced.

House Reef in Chumphon is a shallow, shore-accessible site ideal for beginners. The reef sits at depths between 3 and 7 metres, with an average depth of 5 metres. Divers and snorkellers can explore formations of staghorn, brain, and flower pot corals, alongside various anemones. The current remains mild, allowing for a relaxed pace. Visibility varies significantly, ranging from 5 to 30 metres depending on recent weather conditions. Hazards include sharp coral and stonefish, which may rest on the seabed. Always wear protective footwear or fins during entry and exit to avoid contact with the bottom. Guided tours are available through the on-site dive shop.

Ao Mook is a shallow reef site in Chumphon, Thailand, offering a forgiving environment for beginners. The reef structure features staghorn, brain, and hard corals, with depths ranging from 2 to 7 metres and an average of 4 metres. Visibility is generally good, spanning 15 to 30 metres, and currents remain mild. Divers can access the site via boat or shore entry. On-site facilities include a dive shop and a cafe. Due to the presence of sharp coral and rocks, maintain buoyancy control and watch your footing during entry. Morning dives are recommended to take advantage of optimal light angles on the shallow reef.

Koh Talu is a reef site located 1500 metres offshore in Chumphon, Thailand. Suitable for beginners, the site features depths ranging from 5 to 12 metres with an average of 10 metres. Divers and snorkellers experience mild currents and visibility between 5 and 12 metres. Access is strictly by boat. The reef contains sharp coral and rocks, requiring careful buoyancy control to avoid contact. Guided tours are available through the local dive shop to assist with navigation and reef protection. Typical dives last 45 minutes, and the site is accessible year-round.

Ao Kruad is a shallow reef site in Chumphon, Thailand, ideal for beginners and snorkellers. The reef features brain, lettuce, staghorn, and flower pot corals, alongside sea anemones and small reef fish. Depths range from 2 to 7 metres, averaging 4 metres, with a generally mild current. Visibility varies between 5 and 20 metres, so calm days are recommended to avoid sediment. Access is by boat only. Divers should exercise caution around the reef, as sharp coral and rocks can cause cuts; wearing a wetsuit is advised for protection. Typical dives last around 30 minutes in water temperatures ranging from 28C to 31C.