Hat Chao Mai National Park.

"Koh Kradan" is located in Hat Chao Mai National Park, and it is considered the most beautiful island in the Trang Sea. The sand here is very fine and white, and the water is so clear that you can see the sand patterns beneath the surface. Off the coast of the island, there are shallow coral reefs that are perfect for snorkeling. It takes 30 minutes by boat from Koh Muk. Hat Chao Mai National Park was declared a national park on October 14, 1981, making it the 36th national park in Thailand.