The Loch Ard is the most famous wreck on Victoria's Shipwreck Coast, a clipper ship that went down in 1878 below the cliffs that now bear her name (Loch Ard Gorge). The wreck site sits in around 18 m of water near Port Campbell and is heavily salted — the structure has broken up over 145 years but artefacts and ironwork remain, surrounded by kelp gardens, sponge cover, crayfish, blue devils and schools of sweep. The Shipwreck Coast is one of the most exposed bits of water in Australia — Bass Strait roar with no shelter — so flat-day windows are precious. Boat access only, from Port Campbell. Best in light north-east winds with swell under a metre and tide near slack. Use the live 7-day forecast on this page to plan. Advanced divers — exposed coast, surf zone overhead on bigger days, plan a properly settled forecast.
How far you can see underwater — measured in metres. 10m+ is great, 5–10m is workable, under 3m is murk. Driven by wind, swell, and recent rain.
Long-period waves rolling in from the open ocean. Direction matters more than height — a S swell hits Portsea hard, but an E swell rolls past. Period over 12 s = real ocean punch.
Offshore (N or NE) flattens the surface and clears the water. Onshore (SE through SW) chops it up and stirs sand. Calm or light offshore is the magic combo.
This site faces the open ocean. The exposure caption above shows which directions slam in. Anything from the opposite side gets blocked — that's the safest window.
Slack water — the 30 minutes either side of high or low — is calmest and clearest. Mid-tide brings the most flow. Plan to be down at slack, up before the run picks up.
Bass Strait sits 14–16 °C autumn–winter, 17–19 °C summer. Below 16° a 7 mm hooded keeps you warm for 60 min+. Drysuit if you're going long.