The Garrigal people originally inhabited West Head, which is home to one of the largest known concentrations of recorded Aboriginal sites in Australia. The Basin & Mackerel Trail, America Bay Track and Topham Hill are some areas with significant Aboriginal engraving sites.

A small rock platform near the Topham Trail with a very weathered Aboriginal engraving of a small man.
Two red ochre handprints, in a low shelter below Topham Hill
The Topham Trig Station engraving site is one of great ceremonial significance. It has a Daramulan figure, as well as a man and woman.
Scattered figures including two fish and a small man at the start of the Towlers Bay Track at West Head
A "fishing scene" near the Wallaroo Track, which includes a woman, fish and boomerang.
An intriguing Aboriginal engraving site near the Wallaroo Track, with five men (in two groups) as well as a number of other figures including boomerangs and mundoes.
Aboriginal engraving site which has a set of axe grinding grooves next to a waterhole, and three engraved figures. (Part of the Arden Trig series.)
An Aboriginal rock enrgraving site below the Waratah Track, described as depicting a successful emu hunt,
An Aboriginal engraving site on a spur beneath the Waratah Track, which may illustrate a fishing scene.
Two potholes with a deep channel around them and two axe grinding grooves along a steep ledge. A short distance away are engravings of a shield and fish (not found).
Aboriginal engraving site which represents a man with fish which are his totem (or which he hopes to catch) near the Waratah Track. (Part of the Arden Trig series.)
Aboriginal engraving of a man and woman near Waratah Track. (Part of Arden Trig series.)
A cerermonial or ritual Aboriginal engraving site below the Waratah Track, with a decorated man and woman, whale and many fish.
Aboriginal engraving of an "unusual pair of human figures" near the Waratah Track. (Part of the Arden Trig series.)
An Aboriginal engraving of a "dancing man", axe grinding grooves and a water channel on a long rock platform below the Waratak Trail.