Kalimantan is the Indonesian half of the island of Borneo, the third largest island in the world.
Sparsely populated, with only 12 million people over a huge area, Kalimantan is on the tourist map primarily for the chance to see Orang-utans in the Tanjung Putting National Park.
This is a great alternative (or addition) to seeing orang-utans in Malaysian Borneo. Other options for seeing orang-utans in the wild include Kutai National Park which is much less visited than the other areas to view Orang-utans.