Located opposite Hat Chang is Ko Muk, which can be reached by boat from Kantang or Pak Meng. Ko Muk introduces some of the loveliest corals and small beaches that make for great camping and swimming. The best beach would be Hat Sai Yao, which is on the opposite side of the island from the mainland. It is nicknamed Hat Faráng because it is 'owned' by a faráng (foreigner of European descent) from Phuket.

A not-to-be-missed attraction would be Tham Morakot (Emerald Cave), which is indeed a beautiful limestone tunnel that can be entered by boat during low tide. Moreover, it is named Emerald Cave for a reason; the tunnel stretches 80m before finally emerging into an open pool of emerald hue! It is truly an awesome sight. The southern end of the island presents the beautiful Ao Phangkha and the fishing village of Hua Laem.

The most beautiful island in Hat Jao Mai National Park is Ko Kradan. Only five out of six precincts belong to the park, while the other is used for coconut and rubber plantations.

The water on both islands is so clear that the sea bottom can even be seen from the surface. This encourages the growth of corals and healthy reefs along the northern side of the islands. The water is also shallow enough for snorkeling. Although there are fewer white-sand beaches on Ko Kradan than on Ko Muk, the coral reef on the side facing Ko Muk make up for good diving. Ko Cheuak and Ko Waen are small islands between Ko Muk, Ko Kradan and the Trang coast. Like the Emerald Cave, Ko Cheuak also has a small cave that can be entered by boats at low tide.