The national park has three climbing treks: The Pinnacles Summit Trek, The Headhunter's Trail, and Gunung Mulu Summit Trek. The Pinnacles Summit Trek is a 3 days/2 nights trek leading to the view of the Gunung Mulu Pinnacles. The trek is usually starts with a one or two hours boat ride from Melinau river to Kuala Berar (Berar delta). The Base Camp 5 is a 7.8 km walk from "Kuala Berar". Camp 5 is located near the Melinau Gorge which separates Mount Benarat from Mount Api. After Camp 5, there is a 1.2 km trek rising 1,200 metres; passing from dipterocarp forest to moss forest. The last section requires ropes and ladders to help with the climb.