Pontianak is the capital of the Indonesian province of West Kalimantan. It is a medium-size trading port city on the island of Borneo. Pontianak occupies an area of 107.82 km² in the delta of the Kapuas River.
It is located almost precisely on the equator, hence it is widely known as Kota Khatulistiwa (Equator City)
tanjung puting national park
Tanjung Puting National Park is a national park in Indonesia located in the southeast part of West Kotawaringin Regency in the Indonesian province of Central Kalimantan (Central Borneo). The nearest main town is the capital of the Regency, Pangkalan Bun. The park is famous for its orangutan conservation.
Today Tanjung Puting National Park is a popular ecotourism destination, with many local tour companies offering multi-day boat tours to view wildlife and visit the research centers
Tanjung Puting is the largest and most diverse protected example of extensive coastal tropical heath and peat swamp forest which used to cover much of southern Borneo. The area was originally declared as a game reserve in 1935 and a National Park in 1982
text taken from wikipedia and http://orangutan.org/rainforest/tanjung-puting-national-park/