Mount Mulu (Malay: Gunung Mulu) is a sandstone and shale mountain. At 2376 m, it is the second highest mountain in the state of Sarawak, after Mount Murud. It is located within the boundaries of Gunung Mulu National Park, which is named after it.
The Mulu Park provides for guided hikes up the mountain. The usual schedule is a 4D/3N hike. There are forest huts along the route at Camp 1, Camp 3 and Camp 4 (there is no Camp 2). These forest huts provide shelter, cooking facilities (stove, cooking utensils, cutlery), toilets, and water (collected rainwater).