Borra Caves are situated near Araku Valley and is a very famous tourist spot in Andhra State. The name literally means “the caves which are bored on the ground”. The altitude of this cave is 2310 ft., it is the largest of its kind in India. The cave is situated on the Anantagiri Hilly range in Araku valley. Tourists can see numerous Stalactite and Stalagmite formations on Roof and ground respectively. The Stalactite and Stalagmite are formed by the corrosion caused by sulphur spring over the limestone base. Also few of these structures are imagined in the form of Lord Shiv and Goddess Parvati, Church, Mother-Child, Human Brain, Crocodile, Mushroom, Temple etc. The Bora caves are entirely aphotic in nature (limited light zone) and also very deep. Araku Valley tribes like Porja, Kondadora, Nookadora, Valmiki, Jatapu etc formed a small temple with a Stalagmite Shiv Ling and conducts prayers in the entrance of these Caves. Also the tribes believe that the caves are the origin place for Gosthani River. The Borra Caves has separate railway station. The tourists can choose railway route from Visakhapatnam to access Borra cave rather than Road trip as the train to Borra Caves passes though nearly 30 tunnel routes which sounds very adventurous.