Deer, Lang’s, Clearwater and Wind are the four show caves in Mulu popular for their uniqueness and remarkable beauty. Deer and Lang’s Cave are accessible by the convenience of plank walks and concrete path while Clearwater and Wind Cave can be reached by boat up the Melinau River, or by a 4 km nature trail. Deer Cave is well-known for its famous profile of Abraham Lincoln at the southern entrance of the cave. In the evening, you will witness the exodus of bats emerging from the cave foraging for food. Lang’s Cave is the smallest show cave but it offers good opportunities to see some of its inhabitants such as bats and other cave dwellers. Measuring 107 km in length is Asia’s longest cave, the Clearwater Cave. From here you can reach another cave system – the Wind Cave, through a plank walk. It was given such a name because cool breezes can be felt at some parts of the cave.