Geraldton's harbour structures – the fishing boat harbour jetties, Fishermen's Wharf and the breakwater walls around the Batavia Coast Marina – are listed by Marine Life Network as a shallow, murky dive where a range of invertebrates and many reef fish shelter under the structures, with the caution to avoid port traffic.

The piles and rock walls carry sponges, ascidians, oysters and soft growth, with nudibranchs, shrimps and crabs among them, and fish such as buffalo bream, sweep, trumpeter, bullseyes and juvenile snapper. Occasional rays and turtles move in and out of the harbour.

It is not a destination dive; the visibility is poor and access is constrained by port operations. But it can be a useful macro or night dive on days when wind rules out Point Moore, provided permission and safety arrangements are in place.

The Fishing Boat Harbour and Batavia Coast Marina are on the Geraldton waterfront off Marine Terrace, a few minutes from the town centre. Parking is available around the marina and harbour. Entry is by ladder or from rock walls; check with the Mid West Ports Authority and the local dive shop about where diving is permitted, as the commercial port and fishing harbour are working areas.

Geraldton is one of the windiest towns in Australia: a strong southerly sea breeze blows most afternoons from October to April, often 20-30 knots, and winter brings north-westerly fronts. Marine Life Network estimates Point Moore is diveable only about 60 days a year, with the best windows in March-May and September-November, typically on early mornings or on rare days of easterly land breeze. The harbour is sheltered from swell, but visibility is typically poor and worsens with wind and vessel movements.

Enter at a permitted point, stay close to the jetty piles or breakwater rocks at 2-6 m, and use a torch to look for invertebrates; keep a flag up and stay well clear of vessel movements.

No regular operator; Batavia Coast Dive & Watersports can advise on permitted areas.