Wilderness Landscape & Natural Heritage
Than Sadet–Huai Nam Nak National Park is located on the northeastern coast of Koh Phangan Island in Thailand’s Gulf region. Covering an area rich in both natural beauty and cultural history, the park includes dense tropical rainforests, rugged limestone cliffs, pristine sandy beaches, and several freshwater streams such as the Huai Nam Nak waterfall. The park is renowned for its significance in Thai royalty history—King Rama V visited the area multiple times, and the Than Sadet River is named after these royal visits. Geographically, the park’s landscape features steep hills that descend directly into the sea, creating dramatic views and providing habitat for diverse flora and fauna typical of the tropical monsoon climate. Ecologically, the park supports various wildlife species including tropical birds, butterflies, and marine life along the coast. Outdoor recreation opportunities abound, with popular activities including hiking forest trails, swimming in clear waterfalls and coves, snorkeling along coral reefs near the shore, and camping in designated areas. Notable landmarks include Than Sadet Beach with its historical inscriptions left by King Rama V, multiple waterfalls within the forest, and viewpoints overlooking the Gulf of Thailand. The park’s appeal lies in its blend of coastal and forest environments, quiet natural settings, and rich cultural history, attracting visitors interested in exploration, wildlife, and scenic landscapes.
