In Borneo, deep in Sarawak’s Gunung Mulu National Park, lie the most spectacular caves on earth. Over millennia the flow of water draining from the slopes of G.Mulu towards the sea has cut deep gorges through the Park’s limestone mountains and, within the rock itself, a complex network of vast caves has been formed.
Famous for its extraordinary limestone karst formations and phenomenal cave systems, the Gunung Mulu National Park is one of the most awe-inspiring natural attractions in all of Southeast Asia. Located in Malaysian Borneo in the Sarawak State, this national park features some of the largest and longest cave systems in the world. http://exploretraveler.com