Gunung Mulu National Park.

Gunung Mulu National Park in Sarawak, Malaysia, is a UNESCO World Heritage site celebrated for its breathtaking biodiversity and extraordinary limestone karst formations. This expansive park covers 52,864 hectares and features 17 distinct vegetation zones, home to roughly 3,500 vascular plant species, including 109 palm varieties. Among its highlights are the towering Gunung Mulu peak and the extensive cave systems, which include the Sarawak Chamber— the largest cave chamber globally— and Deer Cave, famous for its immense bat colony. Adventure seekers can enjoy challenging treks, including routes to the Pinnacles and the Headhunters' Trail. With stunning landscapes, unique wildlife, and impressive geological formations, Gunung Mulu National Park is a must-visit for nature lovers and explorers.