Narrabeen-Collaroy beach is Sydney's second longest beach. The 3.6 km long beach curves in a gentle east-facing arc between 20m high Narrabeen Head in the north to rocks and low cliff at Collaroy Point.

The northern Narrabeen end was named after the daughter of the aboriginal chief at the time of early white settlement in the 1840s, while the southern Collaroy end was named after the paddle-wheel steamer ‘Collaroy’ wrecked on the beach in 1884.