Situated part-way down a steep slope in the Berowra Valley National Park below the Turner Firetrail is a large rock platform, on which a solitary shield is engraved.
Below the rock platform is an extraordinarily long sandstone shelter, appearing from outside like a long wave.
Inside the shelter are a number of charcoal motifs. Some figures are fairly distinct; the motifs include a kangaroo, wombat and possum.
There are is also evidence of graffiti, with some of the drawings not Aboriginal.