Borra Caves, also known as Borra Guhalu, are among the most fascinating geological attractions of the Araku region. They are located in the Ananthagiri Hills of the Eastern Ghats and extend deep beneath the surrounding landscape. Government tourism information describes them as ancient limestone caves estimated to be more than 150 million years old.

The caves were discovered in 1807 by William King George of the Geological Survey of India. Their spectacular interior has been shaped over geological time by water acting on limestone, producing dramatic stalactites and stalagmites.

Inside, visitors encounter enormous chambers, narrow passages, unusual rock formations and a naturally formed structure associated with a Shivalingam, giving the cave both geological and religious significance.

Artificial illumination highlights the unusual formations and creates a dramatic underground atmosphere. The combination of geology, mythology, history and adventure makes Borra Caves one of the signature attractions of the Araku circuit.