Situated within the national park, this monastery complex had been constructed in the 9th century AD according to assumptions by various historians. Archaeologists believe that this monastery complex was called the Naga Pabbata Viharaya in those times.
Although the complex has been left with ruins of what once was a home to many Buddhist monks, it carries some significance since there is a laying Buddha statue which is 26 feet long. According to study by historians, the style of the carvings belongs to the Anuradhapura era. However, this statue has been highly damaged by treasure hunters for valuables while only a very few statues such as this which were made of bricks, sand and lime plaster exists.
The remaining of the complex are dip-ledged caves, ruins of stupas and ancient bricks scattered around the premises. Most of these rocks contain several rock inscriptions but sadly most of those are highly damaged due to vandalism by treasure hunters.