Chumphon Dive Sites

The dive sites of Chumphon is closely knit and offers very personal service. It is surprising that this dive region is widely neglected by divers visiting from overseas. The Thai diving community has long embraced diving at Chumphon. Chumphon is a marine park surrounded by 40 over islands with thousands of marine life living in it. Diving around Chumphon can be summed up in a very easy statement: as good as Ko Tao – only without the hordes of scuba divers. The reefs are spectacular, the dive sites have very distinct characteristics and the Prab wreck is almost identical in design to her sister ship, Ko Tao’s Sattakut wreck.

HTMS Prab Wreck dive site & map

Best Times: February - October

The vessel was commissioned in 1944 and was designed by the US Navy for Pacific island-hopping campaigns in World War II. In time, it was handed to the Thai Navy which was then used as a training vessel before being decommissioned from service and handed to Chumphon Province for use of artificial reef. The HTMS Prab lies at a shallower depth giving less experienced divers access to the wreck. A variety of marine life can be spotted, including large schools of one-spot snapper, fusiliers, and even the occasional hawksbill turtle or whale shark.

Hin Lak Ngam dive site & map

Best Times: February - October


Koh Hin Ngam is a small island masked with beautiful, black, polished volcanic stones, formed by waves hitting the shore for thousands of years. Koh Hin Ngam is 2.5km south of Koh Ngam Noi and is made up of two rocky outcrops. Maximum depth is 20m with average visibility. Currents are mild to weak. This dive site has very healthy coral covered with staghorn, table, brain, cabbage and black coral varieties. There are also barrel sponges and beds of anemones. Titan Triggerfish, Pufferfish, Moorish Idol and Porcupine fish can also be spotted.

Hin Pae dive site map

Best Times: February - October

Located in the north of Koh Ngam Yai, Hin Pae is an assembly of rocks that barely protrude the water surface.The unique character of this site is created by a Thai shipping vessel which had sunk a bit over two years ago. However, its structure could not withstand the storms and currents and since then has been disassembling herself through the reef. The maximum depth is 24m but the best portion of the dive is between 10-15m. Hin Pae is abundant in sea anemone, black corals, sea whips, giant clams, butterfly fish, barracuda, sting rays, turtles and whale sharks are spotted occasionally.

Hin Chedi dive site map

Best Times: February - October

The southernmost tip of Ko Ngam Yai is named after the magnificent rock pinnacles which protrude from the water surface in that place. Under the surface the terrain is mostly characterized by loose boulder formations that offer a broad surface area for abundant anemone fields.

Koh Ngam Noi dive site map

Best Times: February - October

Koh Ngam Noi lies 17 kilometers of the coast of Chumphon and 400 meters south of Koh Ngam Yai. Koh Ngam Noi is only a third of the size of its sister island Koh Ngam Yai but alike in its beauty. The best diving spot is at the southern end of the island where rocks form swim-throughs. Most divers cling to the rocks as it is a good area to search for different types of nudibranch. Schools of fish include Snappers, Jacks and Yellowtail barracuda. Blue spotted stingrays can be spotted near sandy areas.

Koh Ngam Yai dive site map

Best Times: February - October

Koh Ngam Yai is located 400 meters north of the smaller sister island of Koh Ngam Noi and also consists of limestone with sparse vegetation amidst the natural, almost artistic, rock structures. Surrounded by high cliffs and rocks, the world around the island consists of colorful coral and many species of fish and is considered one of the most famous diving spots in the Gulf of Thailand, Diving is done one the east side of the island and the dive site is buoyed. This is a favorable site for divers and snorkelers. Currents are normally mild and visibility can go up to 20m.

Sam Laem dive site map

Best Times: February - October

The dive site got it's name "Sam Laem" which means "Triangle" because underwater it's like a formation of three pillars in a triangle. The max. water depth for this dive site is about 30 meters, water visibility up to 20 meters.