Most visitors associate Koh Samui with beaches and resorts, but the island's interior holds a rich natural world of jungles, mountain ridges and waterfalls. The central and upland zones of Samui fall within a designated national park area.

Mu Ko Samui National Park

The island's mountainous centre is part of Mu Ko Samui National Park, encompassing dense tropical forest and several small uninhabited islets nearby. The jungle is home to macaques, wild boars, hornbills and numerous reptile species.

Waterfalls

Na Muang Waterfalls (1 and 2) are the most accessible on the island, located in the centre. Waterfall 1 has a natural pool suitable for swimming. Waterfall 2 is higher and more scenic, reached by a 30–40 minute jungle trail.

Hin Lad Waterfall, near Nathon, can be reached by a short forest path. Than Sadet Waterfall is historically notable for visits by Thai kings, whose monograms are carved into the rocks.

Viewpoints

The mountain roads crossing the island's ridge offer stunning views of both coastlines simultaneously. The viewpoint on Route 4169 between Chaweng and Nathon is the most accessible.

Flora and Fauna

Samui's jungles feature coconut palms, rubber trees, bamboo and hundreds of tropical plant species. Birdlife includes kingfishers, hornbills and exotic pigeons. Green sea turtles occasionally nest on secluded beaches.

Getting There

A motorbike or SUV with good ground clearance is recommended for unpaved tracks to waterfalls, which can be slippery in the rainy season. Bring water, insect repellent and sturdy shoes. Morning is the best time for nature excursions.