Along the Great Ocean Road near Port Campbell is a little-known secret, The Arches Marine Sanctuary. 45 hectares of marine sanctuary, marine life and underwater rock formations. Between Port Campbell and Apollo Bay you can see into the cold Southern Ocean. The deeper waters and under the shaded underside of the arches are home to many marine species, so if you’re into the natural and cultural history of the area, this is a must-see.
History of The Arches Marine Sanctuary
Established in 2002 as part of the Marine Parks system to protect Victoria’s marine environment. Named for the rock stacks and natural rock formations, the sanctuary is part of the Port Campbell National Park and Apostles Marine National Park. These parks protect the marine life and geology of the area and are a stop-off for people on the Great Ocean Road trip.


Marine Life and Biodiversity
The sanctuary is renowned for its marine life. Under the surface you can see colourful seaweeds, rocky reefs and marine mammals and fish. The cold waters of the Bass Strait and the currents create the perfect environment for marine life. Divers and snorkellers may see schools of fish, Blue-throated Wrasse and sometimes Southern Rock Lobsters hiding in crevices. The arches provide a shelter for marine life and the deeper waters are home to marine mammals, seals and dolphins.
Species to See
Southern Rock Lobster, Blue-throated Wrasse, marine mammals. Coloured seaweeds and sponges add colour to the underwater landscape, and the sheltered rock formations are home to many smaller fish and invertebrates.

The Arches
There’s lots to do for nature lovers at The Arches Marine Sanctuary. Snorkel, scuba dive, and kayak in the marine waters surrounding the sanctuary. Each activity gives you a dramatic view of the rock stacks, underwater arches and the Southern Ocean.
Snorkelling
Kayaking through the Sanctuary
Best Time to Visit The Arches Marine Sanctuary

How to Get to The Arches Marine Sanctuary
The Arches Marine Sanctuary is a short drive from Port Campbell, just a minute from the main highway along the Great Ocean Road. From here, follow the signs to the relevant park access points. It’s also close to other major attractions like the Twelve Apostles, so it’s a great stop on any Great Ocean Road trip.
Join a Great Ocean Road Melbourne tour for a perfect mix of nature and adventure. Explore the Arches Marine Sanctuary and visit the Twelve Apostles, all within a scenic drive from Port Campbell.
Nearby Attractions: Make the Most of Your Day
While you’re at The Arches Marine Sanctuary there are several other attractions nearby to visit. The London Arch, Gibson Steps and the Twelve Apostles are a must see along the Great Ocean Road. The green hills and ancient rainforest of Cape Otway offer scenic walks and wildlife spotting so it’s a great addition to your marine adventure.
Port Campbell and Apollo Bay are the two nearby seaside towns where you can base yourself to visit The Arches Marine Sanctuary and other coastal attractions. They have a range of accommodations from B&B to luxury resorts so that you can stay comfortably and close to the sanctuary. They also have local eateries serving fresh seafood, so it’s a great place to unwind after a day of exploring the Great Ocean Road.
