Mu Ko Ang Thong National Park

Mu Ko Ang Thong National Park is a marine national park in the Gulf of Thailand, within Ko Samui District, Surat Thani Province. Established in 1980, it covers 102 sq km and comprises 42 limestone islands characterized by karst cliffs, lagoons, beaches and evergreen forest. Notable features include the emerald saltwater lake Thale Nai on Ko Mae Ko and the viewpoint on Ko Wua Talap. Accessible only by boat, it is protected for kayaking, snorkeling and hiking.

Visitors can expect an archipelago of 42 uninhabited limestone islands with steep karst cliffs, hidden coves, white-sand beaches and forested interiors. Access is by organized boat tour from Ko Samui, Ko Pha Ngan or Surat Thani. Key areas include Ko Wua Talap with its visitor centre, bungalows and a steep trail to a panoramic viewpoint, and Ko Mae Ko with the emerald lake Thale Nai. Activities centre on sightseeing by boat, kayaking along coastlines, snorkeling over reefs, short hikes and photography.