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Diving in Koh Mak

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When to go to Koh Mak

The climate and weather on Koh Mak is tropical.

The best time to visit is from November to April when there is very little rain and the air is cool, dry, and mostly sunny.

Temperatures rise steadily from 30C/86F in November to 34C/93F in April and May.

The average water temperature is about 29C/84F all year round.

The water visibility is 5-25m/16-82ft.


What to see

There are moray eels, stingrays, parrotfish, snappers, fusiliers, big grouper, butterflyfish, bannerfish, barracudas, angelfish, and sometimes dolphins.

Scuba diving in Koh Mak

Koh Mak is the third-largest island in Trat Province, Thailand, after Koh Chang and Koh Kut. The island of Koh Mak is in the east part of the Gulf of Thailand, 35km/22mi from the mainland. The closest airport is Trat airport. The island is fairly undeveloped, natural, and local. Koh Mak has a temple, a primary school, 3 fishing villages, a market, a health center, and approximately 25 resorts. With an area of 16 sq. km, Koh Mak has 27km/17mi of coastline, many long, sandy beautiful beaches, and a few hills. Both Koh Kham and Koh Phi can easily be reached with sea kayaks or boats rented from the resorts on the northwest coast, and are renowned snorkeling destinations. Koh Mak has nice rock pinnacles with an abundance of fish life, a nice coral reef, and often good visibility.


Most popular dive sites

One of the best dive sites, located in Koh Mak is Koh Phe, other interesting sites are Koh Rayang, Koh Kham, and the House Reef in front of the Monkey Island resort. And there are other great dive sites just off Koh Mak - near the Koh Rang Marine Park, Koh Kood and near Ko Chang, which offer many beautiful places for scuba diving. These sites are Hin Luk Bat, HTMS Chang Shipwreck, Koh Rang pinnacle, Koh Raet, and Hin Bang Bao.