Meet the site
Point Cooke Marine Sanctuary is the largest of Port Phillip's marine sanctuaries at 290 hectares, a broad sweep of shallow water off the Point Cook Coastal Park on the bay's north-western shore, and Point Cooke Beach is its shore entry. The geology is the same lava that built the Williamstown reefs: basalt flows that reached the bay and now form low cliffs and ledges rising out of a muddy seabed, with seagrass beds between the rock. Parks Victoria describes rocky reefs rising from shallow water offshore interspersed with seagrass, and that is the dive. From the beach it is a long wade across intertidal sand and rock flats, as much as 200 m, before the basalt reef proper begins in 2 m and steps down to about 5 m. On the rock are tube worms, anemones, sponges, sea urchins and colourful algae; in the seagrass, pipefish, gobies and juvenile fish; and on the sand between, southern fiddler rays basking in the shallows, skates, small sharks including Port Jacksons and draughtboards, flathead and stingarees. Southern blennies live in every crevice and bottlenose dolphins pass along the sanctuary edge in some seasons. Two heritage wrecks, the Henrietta and the Diana, lie within the sanctuary to the east. It is more a snorkel and a nature-study site than a dive: depth is slight, the wade is long and the water is often turbid because it is so shallow and so close to the Werribee River plume. But for divers in the western suburbs it is the only sanctuary reef on their side of the bay, the setting inside the coastal park with its picnic areas and toilets is pleasant, and a calm high-tide morning in autumn shows a surprisingly intact basalt-and-seagrass community. Snakes are common in the park and blue-ringed octopus in the rock pools.
Research this site before booking Stored site notes may be historical. These questions highlight gaps without turning old instructions into a current dive plan.
Point Cooke Beach is recorded as Shore/Rock Platform in Melbourne & Port Phillip Bay. The listed access is shore. Confirm the actual meeting point, route and permission to visit; a map pin does not establish any of these.
Historical access notes exist for this record, but have not been independently verified for current use. Request current directions from the operator or site manager rather than following an old entry description.
Questions, answered
Is Point Cooke Beach suitable for my certification?
The record lists Snorkel/Any. That does not establish suitability for every route or day. Share your training, recent experience and equipment needs with the operator and ask about the specific proposed dive.
Can I book Point Cooke Beach through YouDive?
YouDive is an independent research directory. Contact an operator directly to confirm whether it currently runs the trip, the inclusions and the booking terms.
What you might see
Southern fiddler rays, skates, Port Jackson and draughtboard sharks, stingarees, flathead, southern blennies, pipefish, gobies, tube worms, anemones, sponges, sea urchins, bottlenose dolphins (seasonal), jellyfish swarms in late summer
Location
Basalt reef and seagrass off the beach at Point Cooke Beach Recreation Area, in the 290 ha Point Cooke Marine Sanctuary on the north-western shore of Port Phillip, 20 km south-west of Melbourne.
Facilities nearby
Several car parks off Side Entrance Road; public toilets, BBQ and picnic facilities in the recreation area; no shops nearby; nearest air fills Dive Victoria Group
Before you make plans
Conditions, access and operator schedules can change. This is a location guide, not a dive plan. Ask a local operator about current conditions and suitability for your training and experience.
Sources & further reading
scubadoctor.com.auparks.vic.gov.auRecord updated 27 Sept 2026. Source claims are being reviewed.
