Belum Caves, Kurnool, Andhra Pradesh India

Situated 110 km from Kurnool, it is the longest cave system in the plains of India. These underground caves are located under a flat agricultural field and have three well like cavities with the central one being the main entrance. The exquisite stalactite and stalagmite formations and the imaginative colour illumination are the main attractions of the Belum Caves, which were adjudged as a "Unique Eco-Tourism Project" by the Government of India.  

 Belum Caves is the second largest cave in Indian subcontinent and the longest caves in plains of Indian Subcontinent, known for its stalactite and stalagmite formations. Belum Caves have long passages, spacious chambers, fresh water galleries and siphons. The caves reach its deepest point (120 feet from entrance level) at the point known as Pataalaganga. 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 metres, making it the second largest natural caves in Indian Subcontinent.