Kalimantan is also the home of the original inhabitants, Orang Gunung or Mountain people that called collectively as the Dayak tribe. The Dayak people lives in the hinterland along the banks of major rivers and in long houses. The long houses are built on wooden piles which can sometimes be as tall as 3 meters high as protection against wild animals and flooding. It is customary for the people to live with he a whole extended family or with one clan. Each family has their own compartment and the chief of the clan will occupy the central chamber.
The most common starting point to explore Kalimantan is Balikpapan and Samarinda in the east part of the island because of the regular flight services from Jakarta, Surabaya and Denpasar. Traveling along the extensive Mahakam river is a fascinating adventure. Meeting the Dayak people and visit their long houses, trekking, and overnight on the motorized long boat or in the long house of the Dayak people. Kalimantan is indeed worth to explore.
Kalimantan has a number of nature reserves to protect its unique flora and fauna. Kersik Luway is where the very rare 'Black Orchid' (Colongenia Pandurata) grows, located upstreams the Mahakam river, East Kalimantan. Bontang, in the regency of Kutai with an area of about 200,000 ha, has a rare flora and fauna. The Kutai National Park near Bontang is worth visiting to see scenery especially those at Beras Basah. Tanjung Puting National Park in Central Kalimantan is the oldest conservation site of Kalimantan's flora and fauna. The park is inhabited by Orang Utans, Owa-owa, Bekantan and other primates. Also found here the Orang Utan Rehabilitation Centre which is supported by the Would Wildlife Fund (WWF). In West Kalimantan, Gunung Palung National Park located in the Ketapang regency is home to miscellaneous flora and fauna. The Raya Pasi mountain located in the Singkawang regency is also an interesting place to visit to see the Rafflesia or giant flower. Singkawang is also a nature reserve. The forest of Sanggau is worth a visit where hot springs, lakes and caves can be found. The other nature reserves are the forests of Baning and Kelam Hill in the Sintang regency. While in Kapuas Hulu, there is the Bentuang. In South Kalimantan, there is the Kaget island, home to a wide variety of birds and monkeys, Most notably the humorous longnosed proboscis monkeys.