The Mulu Caves are home to the Sarawak Chamber, the largest single cave chamber in the world. It is also one of the largest cave systems on Earth, with several other near-record setting features. Located beneath Mount Mulu, it is part of a geological system that extends to magnificent rock formations on the surface. The Mulu Caves are located in Gunung Mulu National Park, which is also a UNESCO World Heritage Site.
Mount Mulu and its caves were known during the colonial era, but were not extensively explored until the 1970s. The most famous caving expedition here took place in 1981, when the Sarawak Chamber was discovered. The national park was established in 1974.
The Mulu Caves are very extensive and only partially open to the public. Highlights of the cave include the Sarawak Chamber, with a floor the size of sixty football fields and a ceiling reaching to 377 feet in height; the Deer Cave, the Benarat Cavern and the Clearwater Cave (all of these are among the largest caves on Earth).
The Mulu Caves are part of Gunung Mulu National Park, and visitors typically tour both the caves and the surface. The mountainsides are home to fields of limestone pillars, and a wide variety of wildlife makes the mountain their home. Web: http://mulupark.com (official website).