Kayan Mentarang National Park

Kayan Mentarang National Park is one of Indonesia's largest national parks, covering about 13,605 square kilometers in Malinau Regency, North Kalimantan, on Borneo near the Malaysian border. Established as a nature reserve in 1980 and declared a national park in 1996, it protects vast primary dipterocarp rainforest, the Kayan and Mentarang river basins, diverse Bornean wildlife, and traditional Dayak communities living within and around the park.

Visitors can expect a remote, densely forested wilderness with primary lowland and montane rainforest, clear rivers and rugged interior terrain. Access is by longboat and forest trails. Areas open to visitors include Dayak villages with traditional longhouses, jungle trekking routes, river routes, and wildlife observation areas. The environment is largely undeveloped with basic village homestays and camping, offering nature and cultural experiences rather than built tourist facilities.