Located deep inside the jungle of Bukit Lawang’s national park and covered with outgrow trees and forest plantations, the Batcave is one of the best attractions and a good challenge for visitors in Bukit Lawang. The cave was formed million of years ago and contained 3 separated chambers with large, heavy boulders and home to many of Indonesia’s bat species who dominated the place. During the duration of exploring the cave, it is quite difficult to travels alone because there are narrow paths, dark atmosphere, dead-ends, and the cave’s bed is very slippery. Therefore, I highly recommended that visitors should explore the Batcave with a tour guide. It is also worth it to explore thoroughly all the 3 chambers because each has its own level of challenges and you will see fascinating rock arrangement into unique formations as well as exotic insects and bats.