Neptune Islands
Uninhabited islands at the mouth of Spencer Gulf, and Australia's only waters approved for great white shark cage diving. Boats leave from Port Lincoln for a full day at sea.
The Neptune Islands lie at the entrance to Spencer Gulf, about 60 km by sea from Port Lincoln. New Zealand fur seals and Australian sea lions live on the islands, drawing great white sharks to patrol the nearby waters. It is the only place in Australia licensed for great white shark cage diving, and the whole area is part of a marine park reserve.
Licensed operators depart from Lincoln Bay wharf. The boat trip takes about 2.5–3 hours. Once at sea, the cage is lowered into the water. No diving certificate is needed: you can wear a wetsuit and go down into the cage, or simply watch from the deck or the viewing cabin without entering the water. The full-day trip lasts about 12 hours and includes lunch. Prices start at about AUD 600–700, and advance booking is essential in peak season. Operators generally offer a free return trip if no sharks are seen.
The sea can be rough, so take seasickness medication in advance.
Opening hours
Year-round; departs approx. 07:00, returns approx. 19:00 (depends on operator and weather)
Nearby sights
- Hopkins Island
- Memory Cove
- Lincoln National Park
- Sleaford Bay
- Whalers Way
- Port Lincoln Foreshore & Town Jetty
- Mikkira Station
- Axel Stenross Maritime Museum