Over millions of years, rainfall (combined with the tropical temperatures and abundant vegetation) has slowly dissolved the cracks and weaknesses of Mulu's thick limestones to produce stunning landscapes with caves, cliffs, pinnacles and hidden valleys.
These topographical features are one of the finest examples of tropical karst in the world. Together with the sheer concentration of caves, they have earned Mulu its status as a World Heritage Area.
Numerous caving expeditions have discovered and mapped a vast labyrinth of underground passages in each of Mulu's main limestone massifs: the Southern Hills, Gunung Api,Gunung Benerat and further north Gunung Buda.
Visitors can now see for themselves some of the finest features of the most striking caves in the park. Access to these "show caves" has been facilitated with plank walk trails through the forest. Within the show caves, inconspicuous paths and lighting make it possible to safely view the subterranean landscapes and curiosities.
For the more sporty visitor seeking a physical challenge there are also a number of adventure caving circuits.
Mulu's caves hold a number of incredible World Records too!
Where the underground world meets the surface there are many scenes of stunning beauty in the partially lit zones. These zones are home to numerous interesting plants and animals, many of which are endemic (ie found nowhere else in the world).
So, visit Mulu and make The Matumau Lodge your home while you experience what this region has to offer.