Airly Frustum is a large cavern that has been eroded beneath the pagodas by water.
The cavern is very narrow at the back, moist and illuminated though holes in the roof.
The front of the cavern is much wider and is diamond shaped, bordered by ledges. The southern ledge is quite long offering unique views over the area.
A pile of rubble in the centre that have dropped from the roof of the cave.
Although there is water in the cavern after rain, it is not a reliable supply.
Glen Alice 8931-4N
56H 242 325
Mugii Murum-ban State Conservation Area (NSW)