HTMS Prasae is a decommissioned naval vessel intentionally sunk to serve as an artificial reef. Located in the Samae San Islands, the wreck sits at depths between 3 and 15 metres, with an average depth of 10 metres. The site is suitable for beginners, featuring mild currents and shore access. Visibility varies significantly from 2 to 15 metres, often influenced by weather conditions. Divers can explore the structure, which supports a variety of reef fish and invertebrates typical of the Gulf of Thailand. Night diving is permitted, offering opportunities to observe nocturnal activity. Facilities including equipment rental, air fills, and showers are available on site.

Mun Nai Jetty, located on the west side of Mun Nai Island, offers an accessible shore dive suitable for beginners. The site features a mix of reef, muck, and artificial reef environments with an average depth of 6 metres, ranging from 2 to 8 metres. Divers and snorkellers can observe common species including wrasses, rock cod, crabs, sergeants, and rabbitfish. Less frequently encountered life includes eightband butterflyfish, porcupinefish, coral trout, copperband butterflyfish, groupers, goatfish, Caribbean barrel sponges, long-spined sea urchins, and zoanthids. Conditions are generally mild with visibility between 2 and 15 metres. Night diving is available, and guided tours are provided for this 30-minute typical dive.

Hin Pleng West is a pinnacle and reef site located in the Gulf of Thailand North. This site features depths ranging from 3 to 30 metres, with an average depth of 15 metres. Access is by boat only, as the site is situated 50 kilometres from the shore. Divers should be prepared for moderate currents and visibility that fluctuates between 5 and 25 metres. The site is suitable for intermediate divers, with typical dive times around 50 minutes. Hazards include boat traffic, strong currents, and potential decompression risks. Divers should also be aware of sharp coral, sea urchins, and stonefish in the area.