Mulu offers the adventurous traveller an exhilarating cave experience and rainforest trekking adventure. Mulu is famed for her unique rock formation and numerous cave types. Besides exploring Mulu's underground world, visitors can trek through the forest, take longboat river trips and guided walks. Trekkers can also step into the trail used by the head hunters of the past. However be very sure you are fit and very experienced if you want to trek to the Pinnacles or up to the summit of Gunung Mulu.