Dive sites by region · 2026 guide
Pier diving, weedy seadragons and easy shore access, with deeper wreck and wall diving offshore.
These are the 4 Mornington Peninsula sites in our database, best-documented first, with the operators who run trips to each.
1Mornington Peninsula, Victoria
Victoria's signature artificial wreck — a former guided missile frigate at around 28 metres.
Visit Victoria places the wreck at approximately 28 metres. Access requires a licensed operator or use of the public mooring system.
Look for: temperate reef fish, sponges and soft corals colonising the structure, schooling baitfish, seals occasionally in the area
2Mornington Peninsula, Victoria
Victoria's most popular pier dive, and the best-known site for giant spider crab aggregations.
It is best known internationally for the giant spider crab aggregation, when tens of thousands of crabs gather in the shallows to moult.
Look for: Giant Spider Crab, Nudibranchs, Seahorses & Pipefish, Weedy Seadragon
Full Blairgowrie Pier guide →
3Mornington Peninsula, Victoria
A shallow, sheltered pier known for seahorses, seadragons and night diving.
The piles and surrounding sand hold seahorses, weedy seadragons, octopus and an excellent range of macro subjects, and the site is heavily used for training.
Look for: Giant Spider Crab, Nudibranchs, Seahorses & Pipefish, Weedy Seadragon
Full Rye Pier guide →
4Mornington Peninsula, Victoria
A Western Port pier with one of Victoria's most reliable weedy seadragon populations.
The seagrass and kelp around the piles support a resident population, and the shallow depth makes for very long, relaxed dives.
Look for: Weedy Seadragon
Full Flinders Pier guide →Sites are chosen from our dive-site database and ordered by how well documented they are: flagship status, the number of operators we have confirmed dive there, and the marine life recorded. Nobody pays to be listed.
No. Listings and order come from our research only. Businesses can ask us to correct their details, but not to change their position.
It is generated from the directory's latest research, checked in 2026. Conditions, operators and seasons change — confirm details with the operator before you book.