Kalimantan, one of Indonesia’s least visited islands, remains largely undiscovered. Its interiors consist of deep, dense tropical jungles, expansive wetlands, mangroves and rivers, and occupy two-thirds of Borneo, while the rest belongs to East Malaysia and Brunei.
Rich with natural resources, namely oil, natural gas, coal and timber, Kalimantan plays a major role in the development of Indonesia’s economy. Its jungle heartlands and hilly regions provide ideal challenges for mountaineers and trekking enthusiasts. Samarinda and Balikpanpan in East Kalimantan are two major tourist and industrial cities. A handful of national parks, swamps and natural reserves occupy a vast area of West and Central Kalimantan, while South Kalimantan is home to the Kinabatangan River, country’s longest (6,000km), numerous floating markets and forest conservations.