Belum Caves is the second largest cave in Indian sub-continent and the longest caves in plains of Indian Subcontinent. Belum Caves derives its name from "Bilum" Sanskrit word for caves. In Telugu language, it is called Belum Guhalu. Belum Caves has a length of 3229 meters, making it the second largest natural caves in Indian Subcontinent. Belum Caves have long passages, spacious chambers, fresh water galleries and siphons. The caves reach its deepest point 120 ft from entrance level at the point known as Patalganaga.
