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Koh Chang

Mu Koh Chang Marine National Park

In the country’s easternmost province of Trat, the Mu Koh Chang Marine National Park comprises 52 islands scattered along the coastline close to the Cambodian border.

Established in 1982, it covers just over 650 sq km and is one of Thailand’s least visited national parks. Koh Chang is the second largest island in Thailand, with a footprint covering 240 sq. km.

Blanketed in almost impenetrable virgin rainforest, the hilly interior rises to a peak at Khao Join Prasat, which climbs to reach 744m as it dominates the centre of the island. Although wildlife is sparse, there are wild boars, hornbills, parrots and sunbirds − all of which can be seen in the forest.

Many of the island’s inhabitants still make their living from fishing, although tourism is increasingly making its mark. Nowadays quite a few of the once-familiar small resorts of bungalows and bamboo huts are being replaced, or joined, by high-end hotels, resorts and spas.

The islands amenities mainly focus around the perimeter, particularly the larger beaches which are all easily accessed by road. Getting around the island is simple as there are plenty of pickup trucks and taxis, as well as minibuses travelling to and from Trat airport. There are also tourist amenities and accommodation on the island of Koh Mak.

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Anemone crab in magnificent sea anemone Anemone crab in magnificent sea anemone
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Koh Chang Hin Saam Sao Hin Luk Bat Blueberry Hill Hin Rua Tek Hin Rap Koh Wai Koh Rang Pinnacles Koh Kra Koh Tien West Koh Yak and Koh Laun Hin Kuak Ma
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Diving around Koh Chang

The diving here still has an exciting exploratory feel to it and, as they’re spread over a large area, the sites are uncrowded. Mu Koh Chang Marine National Park has a large selection of healthy fringing reefs, pinnacles and walls, as well as several very enjoyable snorkelling sites.

In general, visibility averages around 10m, although it can be in excess of 20m, especially at the sites further south. Marine life is also more prolific in these areas. There are plenty of colourful reef-dwellers, from minute invertebrates up to giant clams. The waters also attract many large pelagics, rays and – quite regularly – whale sharks.


For detailed information on Koh Chang facilities, click here