Kumala island is situated in the middle of Mahakam River, passing Tenggarong city, in Kutai Kartanegara district.
At first, this 85 hectare island was a sedimentation of mud, forming a land. This island is unique as it looks like a boat in the middle of a river.
Before transforming into a modern recreation site, Kumala was a site for hundreds of bekantan (Nasalis Larvatus) and various types of Borneo wild reptiles.
Tourist Park of Kumala Island was developed since 2002. Entrance fee to this tourist park is Rp2,000 per person.