Punyelroo Cave

Punyelroo Cave
LocationPunyelroo, South Australia, Australia
Coordinates34°35′39″S 139°36′40″E / 34.5943°S 139.6112°E / -34.5943; 139.6112
Length3 kilometres (1.86 mi)
Elevation8 metres (26 ft)
GeologyMiocene sandstone

Punyelroo Cave is a horizontal solution cave extending for approximately three kilometres (1.86 mi) into a Miocene sandstone cliff on the banks of the Murray River in South Australia, five kilometres (3.11 mi) south of Swan Reach. It is the longest cave on the river system.