The Grotto Point Aboriginal Site at Dobroyd Head in Mosman is a signposted Aboriginal heritage site, located along the popular Spit to Manly bushwalk. Timber enclosures protect the engravings, and there is detailed interpretative signage. The site features two enormous kangaroos: one is the biggest recorded among the engravings around Sydney (22 feet in length), while the second one overlaps a whale.
The site also has a number of boomerangs, two sharks and some fish.
The large kangaroo was considered to be a figure of great power and strength, and of “prime ritual and mythological importance together with the other one”.