Mulu National Park, which was gazetted as a National Park in 1974, is located in Sarawak, East Malaysia, very close to the Brunei border. The Park covers 52,866 hectares (544 sq. km), which is approximately the same size as Northern Ireland, and consists of shale and sandstone, flanked by limestone outcrops with virgin tropical forest on the lower slopes giving way to montane vegetation in the upper regions.
The Park is dominated by the sandstone mass of Gunung Mulu which rises to a height of 2376m in the East. The lesser Peaks of Gunung Api (1750m) and Gunung Benarat (1580m) lie to the West and North of Gunung Mulu respectively.
As well as attraction as a caving and climbing area, Mulu is a great place to get back to nature. At the last count the Park had around 3500 different plants including 1,500 species of flowering plants, 170 species of orchids, and 10 species of pitcher plants. It also has 67 different types of mammals, 262 types of birds, 281 species of butterfly, 47 species of fish, 458 species of ants and 74 species of frogs including its newest addition, the recently discovered Borneon frog. Also to be commonly seen swinging through the trees are the small Bornean gibbons.
However, the main attraction of Mulu National Park is the many caves that exist. Serious cave exploration of the area is recent affair having started with the Royal Geographical Society expedition in 1978 lead by Robin Hanbury-Tenison. It was originally planned to explore the caves in 1976 but unfortunately this trip failed to take place. Further expeditions were carried out in 1980/81, 1984, and the latest in 1988. So far 26 caves, comprising of approximately 168km of passage, have been discovered, however it is believed that this only represents around 30% of the total number of caves in the area.
From the public point of view, the caves fall into two categories, show caves and adventure caves. At present there are four show caves namely Deer Cave, Langs Cave, Clearwater cave and The cave of the Winds. (see individual web pages for more details on these caves). Many of the other caves can be explored as adventure caves although experienced local guides must be used (see contacts section of this web).