Of other main islands, Ko Kut is the second largest in the group and, like KO Chang, is mountainous and still half covered with forest. On its coast are some of the loveliest beaches in the archipelago. Ko Mak, Lying between Ko Chang and Ko Kut, is covered mostly with coconut groves and exudes a rather more inhabited air than its neighbouring island.Located off the northwest tip of Ko Mak, Ko Kradat is completely flat and lacks topographical interest, though its beaches and surrounding coral reefs are superb.