Gunung Mulu National Park. Deer Cave & the Pinnacles of Gunung Api.
The Gunung Mulu National Park, usually referred to simply as Mulu Park, is located in the Miri Division of the state of Sarawak, which occupies the northwestern shore of Borneo Island, Malaysia. The park was established in 1974, and holds UNESCO World Heritage Site status. Gunung Mulu is known for its impressive collection of caves, some of which are the largest in Southeast Asia, as well as for its rich dense rainforests. It covers an area measuring approximately 52,864 hectares (528.64 km2 or 130,630 acres) and is the largest national park in Sarawak that is open to the public.