Just off the coast near Port Campbell, The Arches Marine Sanctuary protects a remarkable seascape. This area is known for the above water limestone landscape, however 19 to 25 metres below the waves there is a labyrinth of towering limestone canyons, caves, arches and walls. It is these structures which give the park its name. The area is characterised by high energy waves and cool water with flows from the Southern Ocean.

The complex structures beneath the waves provide a foundation for brilliantly coloured seaweeds and sponges to grow on. Due to the shaded underside of the underwater arches, habitats here are typical of those found in the deeper waters of Bass Strait.

Fish species seen here are typical of those found in western Victoria at places like the nearby Twelve Apostles Marine National Park, however The Arches Marine Sanctuary is also notable as an important site for Port Jackson Sharks that are frequently seen during the day sleeping under ledges within the park.

Before traveling, visit Parks Victoria’s website to check for changes in park conditions which may impact your visit. Remember to stay bushfire ready using the Vic Emergency website while in nature.