Collins Flat Beach is a sheltered harbour beach between between North Head and Little Manly Cove. It can only be reached via foot, via a couple of walking tracks.
Sydney Harbour National Park
The Sydney Harbour National Park as created progressively from 1975, and now includes parts of Port Jackson, Sydney and its foreshores and various islands over 392 hectares of land. The national park protects the landforms of Bradleys Head, Clark Island, Dobroyd Head, Fort Denison, Georges Head, Goat Island, Middle Head, Nielsen Park, Rodd Island, Shark Island and Sydney Heads (including the Quarantine Station at North Head and The Gap bluff at South Head)