Clontarf Marina sits on Sandy Bay on the north-eastern shore of Middle Harbour, just before the Spit Bridge — making it the closest full-service marina to Sydney Heads while remaining naturally sheltered from most weather directions.

Its position outside the Spit Bridge means masted vessels have direct ocean access without waiting for bridge openings. The marina offers 64 floating berths, 18 swing moorings, a slipway rated to 22 tonnes, fuel, and a full range of marine trades and services.

Toilets, showers, and car parking are also available on site.