Lang's Cave

Useful Information

Location: Gunung Mulu National Park, island of Borneo, Sarawak. 3 km walk from the National Park office.
(3°57' N, 114°47' E)
Open: Lang and Deer Cave: All year daily 14, 14:30.
Fee: Lang and Deer Cave: Per Person MYR 35.
Classification: SpeleologyKarst Cave
Light: LightIncandescent Electric Light System
Guided tours: L=9 km, D=3 h plus bat exodus.
Deer Cave: L=800 m.
Lang Cave: L=100 m.
Photography: allowed
Accessibility: no
Bibliography: Hans P Hazebroek, Abang Kashim bin Abang Morshidi (2002): A Guide to the Gunung Mulu National Park, A world heritage site in Sarawak, Malaysian Borneo. with a foreword by Dato Sri Abang Haji Abdul Rahman Zohari bin Tun Abang Haji Openg, Minister of Tourism 2002. 91 pp numerous colour photos. SB
Address: Gunung Mulu National Park, Borsarmulu Park Management Sdn Bhd, No 11, Pekan Mulu, Mulu, 98070, Sarawak, Tel: +6085-792-600/601/602/603, Fax: +6085-792-605. E-mail:
As far as we know this information was accurate when it was published (see years in brackets), but may have changed since then.
Please check rates and details directly with the companies in question if you need more recent info.


1977/1978 first speleological exploration of the cave by British cavers.


Lang Cave or Lang's Cave is only a few minutes walk (300 m) from the southern entrance of Deer Cave. It was named after Lang, a local guide who showed it to the cave explorer's of the 1977/1978 expedition. This cave contains a wonderful array of speleothems, including some unusual helictites and shawls or bacon rind formations. The cave is much smaller, but it is well lit and impresses with its interesting contents. Beneath the bats the shimmering webs of thread worm larvae are part of the impressive cave life.

The cave has electric light and it has well developed paths. It is reached from the visitor center on a 3 km long wooden raised plank walk. The guided tour includes both Deer and Lang cave. The Bat Exodus begins at 17 and ends around 18 every evening. It is free and you can walk self guided to the bat observatory. But the cave tour is timed to end with the bat exodus. Bring raincoat, sturdy walking shoes, insect repellent, a torch, and some food and drinking water. Torches are recommended for personal use in darker areas and for the walk back after the bat exodus.