Koh Kradan is a small island, 3.8km long from north to south and only a few hundred metres wide in some spots. It lies 15km off the coast of Trang and is part of the Hat Chao Mai national park. Koh Kradan has beautiful beaches and crystal clear water. A couple of basic resorts are available on the island and in 2008/09 a new, upmarket resort (The Sevenseas Resort) opened. Koh Kradan receives a number of daytrippers, coming from the nearby island of
Koh Muk.