Geography

Borneo is surrounded by the South China Sea to the north and northwest, the Sulu Sea to the northeast, the Celebes Sea and the Makassar Strait to the east and the Java Sea and Karimata Strait to the south. It has an area of 743,330 square kilometres (287,000 sq mi).

To the west of Borneo are the Malay Peninsula and Sumatra. To the south is Java. To the east is the island of Sulawesi (Celebes). To the northeast is the Philippines.

Borneo's highest point is Mount Kinabalu in Sabah, Malaysia, with an elevation of 4,095 m (13,435 ft) above sea level. This makes it the world's third highest island.

The largest river systems are the Kapuas River, with approximately 1,143 km (710 mi), the longest river in Indonesia, the Rajang River in Sarawak with some 562.5 km (349.5 mi), the longest river in Malaysia, the Barito River about 880 km long (550 mi), and the Mahakam River about 980 km long (610 mi).

Borneo is also known for its extensive cave systems. Clearwater Cave has one of the world's longest underground rivers. Deer Cave, thought to be the largest cave passage in the world, is home to over three million bats, with guano accumulated to over 100 metres (330 ft) high.

Read more...