Dive-site story
Located near the entrance to Port Phillip Bay on the Mornington Peninsula, Portsea Pier is one of Victoria's most recognized shore dives. The pylons and surrounding seagrass beds support a diverse temperate ecosystem, offering reliable encounters with unique southern Australian species. Divers typically navigate along the wooden pier structure before exploring the adjacent sandy patches and weed banks.
Reliable encounters with resident weedy seadragons sheltering among the kelp and pylon bases
Large smooth rays and banjo sharks cruising across the open sand flats
Pylon timber encrusted with sponges, ascidians, and bryozoans
Location
Use the map to plan with your operator and confirm the exact entry point on the day.
Seasonality
Warmer waters and calmer summer winds provide the most comfortable conditions, though winter offers crisper visibility when winds blow offshore.
Marine life
| Species | Likelihood | J | F | M | A | M | J | J | A | S | O | N | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weedy SeadragonPhyllopteryx taeniolatus | Common | ||||||||||||
| Smooth RayBathytoshia brevicaudata | Common | ||||||||||||
| Southern Fiddler RayTrygonorrhina dumerilii | Common | ||||||||||||
| Big-belly SeahorseHippocampus abdominalis | Seasonal | ||||||||||||
| Globe FishDiodon nicthemerus | Common |
Marine forecast
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