Gunong Mulu, a UNESCO World Heritage Site of Outstanding Natural Beauty, has everything to offer for both leisure and adventurous visitors. It has the world’s most extensive cave system, jungle trekking, river rapids, and fascinating people, including Sarawak’s last nomadic tribes.

Its limestone mountain range is honeycombed with underground caverns and riversby one of the world’s most extensive cave system. This includes: the world’s largest natural chamber, the Sarawak Chamber; the world’s largest cave passage, Deer Cave, capable of holding London’s St.Paul’s Cathedral; and at 215 km as of 2015, the eighth longest cave in the world, the Clearwater Cave System.

Its limestone mountain range is honeycombed with underground caverns and riversby one of the world’s most extensive cave system. This includes: the world’s largest natural chamber, the Sarawak Chamber; the world’s largest cave passage, Deer Cave,capable of holding London’s St.Paul’s Cathedral; and at 215 km as of 2015, the eighth longest cave in the world, the Clearwater Cave System..

At dusk, visitors are thrilled as they watch a black river exodus of two million bats pouring out of the Deer Cave on their nightly forage for insects.

Above ground, the park is just as fascinating. Its 15 different types of forest contain a wealth of wildlife and thousands of species of ferns, fungi, mosses and flowering plants. There are 170 species of wild orchids and 10 species of the carnivorous pitcher plants with species still waiting to be discovered.
 

The best way to experience this amazing variety of life is on jungle and mountain treks that require overnight stays at jungle camps. These treks require guides and a certain level of fitness, especially the Pinnacles on Gunung Api, with it’s razor sharp limestone peaks soaring above the surrounding jungle.