Kalimantan is the Indonesian portion of Borneo. There are various sanctuaries for rehabilitated orangutans here, including the
largest in Indonesia, found in Central Kalimantan, and a
2,000 ha sanctuary set in an area of restored rainforest in East Kalimantan. Centres like this are focused on preparing orangutans for their eventual release, wherever possible. You will also likely help care for sun bears, the rarest bears in the world.
You’ll be treated as a de facto member of staff, helping out in a wide range of tasks at projects that crucially also provide paid employment for local people, which helps foster a commitment to the orangutan’s survival in the surrounding community.
Malaysian Borneo is split into two separate states: Sarawak and Sabah. In Sarawak, as well as assisting at a prestigious orangutan rehabilitation center, you might spend a week with an Iban tribe, custodians of the rainforest. In
Sabah, meanwhile, after a stay in a traditional tribal longhouse, you might work with macaques, pygmy elephants and proboscis monkeys, as well as the orangutans and sun bears. Bringing a camera is essential.