Constructed from black lava rock, Pura Ponjok Batu was built in the 15th century and overlooks a small stone ponjok (projection).  It lies atop a circular hill surrounded by a six-sided wall with three entrances while inside the holy inner courtyard is a walled island containing limestone shrines.  The pura was built in homage to Danghyang Niratha, a Siwa Sidanta high priest who was first to bring Hindu dharma to Bali.