Meet the site
Portarlington Pier is the Bellarine's main northern pier, a long timber and concrete structure with a rock-wall harbour that shelters the local mussel-farming fleet and now the Melbourne ferry. It faces north across the widest part of Port Phillip, which puts the whole peninsula between it and the southerly weather; The Scuba Doctor notes simply that it is protected from southerly winds, and that is its greatest asset for divers. The dive itself is easy and sandy. Depth under the pier is 2-5 m at high tide over a clean sand bottom with seagrass patches, and the pylons carry the mussels that Portarlington is famous for, along with sea squirts, sponges and algae. Among them live seahorses (Portarlington is one of the more reliable seahorse piers on the bay), pipefish, blennies, cardinalfish, small leatherjackets, sea stars and octopus, with fiddler rays and flathead on the sand and squid and dumpling squid at night. The outer rock wall adds ledges and boulders with more fish, and 40-70 m seaward of the wall sit small artificial reefs that are outside the pier's 30 m protection zone and attract snapper, leatherjackets and wrasse. The site makes a nice night dive, sheltered and lit. Its limitations are traffic and shallowness: the ferry, the mussel boats and the public ramp keep the harbour busy and the water is barely 2 m at low tide. For Geelong and Melbourne divers it is a reliable, comfortable pier for training, macro and night dives on a day when everything with a southerly aspect is unworkable, and Steeles Rocks 1 km east and the Indented Head sites a few kilometres south-east make a full day of it.
Research this site before booking Stored site notes may be historical. These questions highlight gaps without turning old instructions into a current dive plan.
Portarlington Pier is recorded as Jetty/Pier in Geelong & Bellarine. 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.
- 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 Portarlington Pier 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 Portarlington Pier 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
Seahorses, pipefish, blennies, cardinalfish, leatherjackets, sea stars, octopus, fiddler rays, flathead, squid and dumpling squid at night, mussels on pylons, snapper and wrasse on the artificial reefs
Location
Pier and rock-wall harbour on the north coast of the Bellarine Peninsula at Portarlington, facing north across Port Phillip toward Melbourne, with artificial reefs 40-70 m off the rock wall.
Facilities nearby
Large free foreshore car park; public toilets and showers on the foreshore; cafes, bakery and pubs in Newcombe Street; ferry terminal; nearest air fills Bay City Scuba, Geelong
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.