Meet the site
Cowes Jetty is Phillip Island's town pier, a long timber structure running north from the foot of Thompson Avenue into Western Port, and it is the island's most convenient and most frequently dived shore site. Scuba Doctor lists it at 2–15 m, recommends it for night dives, and notes the sheltered beaches, toilets, barbecues and playgrounds around it – this is a dive done from a car parked on The Esplanade with a cafe a hundred metres away. The pier is used by the Western Port passenger ferry from Stony Point and by seasonal cruise boats, and the dive is a classic pylon crawl: out along one side, back along the other, in the sand and seagrass shallows near shore and deeper water towards the head. The pylons carry the mixed growth typical of Western Port piers – sponges, ascidians, hydroids, tubeworms and mussels – and among them live the animals that make Victorian pier diving what it is: big-belly seahorses, pipefish, decorator crabs, spider crabs (in large aggregations some winters), hermit crabs, cowfish, globefish, nudibranchs and octopus, with leatherjackets, wrasse and juvenile fish schooling in the shade of the deck. On the sand and seagrass beside the pier are stingarees, fiddler rays, flathead and goatfish, and at night the pylons come alive with crabs, shrimp, squid and hunting octopus. The bottom is scattered with fishing debris and the odd historical relic. Visibility is Western Port visibility – rarely more than 8 m, sometimes much less – and the tide runs along the pier, so timing for slack or the flood matters. The wreck of the steam launch Vixen lies 450 m to the west and is a separate dive. Cowes Jetty suits any certified diver in reasonable conditions, is the natural place for a night dive or a check-out after a lay-off, and is the fallback for visitors when the ocean coast is unworkable. Its weaknesses are ferry traffic, fishing line and modest clarity; its strength is that it is always there.
Research this site before booking Stored site notes may be historical. These questions highlight gaps without turning old instructions into a current dive plan.
Cowes Jetty is recorded as Jetty/Pier in Phillip Island & Western Port. The listed access is shore. Confirm the actual meeting point, route and permission to visit; a map pin does not establish any of these.
Topics flagged by the stored research
These are questions prompted by the existing notes, not a verified or complete hazard assessment.
- Current and timing
- Ask how the operator assesses the current window for the actual route. Historical tide notes are not a departure instruction.
- Other water users
- Ask about vessel activity, exclusion areas and the agreed surface arrangements.
- Lines and obstructions
- Discuss any known entanglement concerns and the suitability of the planned area.
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 Cowes Jetty suitable for my certification?
The record lists Open Water. 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 Cowes Jetty 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
Big-belly seahorses, pipefish, decorator and spider crabs, cowfish, globefish, nudibranchs, octopus, squid at night, leatherjackets, wrasse, stingarees, fiddler rays, flathead, goatfish, sponges, ascidians and hydroids
Location
Long timber pier at the foot of Thompson Avenue on the north coast of Phillip Island, facing Western Port; ferry terminal for the Stony Point–Cowes passenger ferry.
Facilities nearby
Parking on The Esplanade, public toilets, barbecues, playground and beach; cafes and shops on Thompson Avenue; No air fills on Phillip Island; nearest fills on the Mornington Peninsula (Rye/Portsea) or in Melbourne's south-east
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.auscubadoctor.com.auRecord updated 26 Sept 2026. Source claims are being reviewed.