Thailand :: Samui :: Angthong Marine National park

This comprises some 40 islands about two hours by boat northwest of Ko Samui. The park covers 250 square kilometres, of which approximately one fifth is land mass. Most islands comprise limestone masses reaching height of up to 400 metres, and fringed by beaches and rain forest. An emerald saltwater lake known as Thale Nai (Inland Sea) is the park's major scenic attraction, and entails a mildly strenuous climb. The resultant views are well worth the effort. An extensive span of coral reef and a huge rock arch offer scenic fascination.