Garigal National Park has extensive Aboriginal history, with over 300 Aboriginal sites recorded. These include cave art, rock engravings, shelters, middens and grinding grooves. Many other sites in the Northern Beaches area are preserved in Crown land, reserves and land managed by the Metropolitan Local Aboriginal Land Council.
A significant Aboriginal cultural site, the Moon Rock Aboriginal Site was declared an Aboriginal Place in 2016. The site has over 50 engravings, including tools and weapons used and to catch animals that were eaten in the area.