Port Lincoln is a fishing town on the Eyre Peninsula about 650km west of Adelaide. It is one of the only places in the world where you can get in a cage in the open ocean and come face to face with great white sharks in their actual natural habitat. Not an aquarium. Not a controlled environment with a plexiglass barrier. The actual ocean, actual great whites, and you in a steel cage watching them move past you at close range.
Great white sharks grow to 6 metres and can weigh over 2,000kg. They have been apex predators for 11 million years. The waters around the Neptune Islands near Port Lincoln are a feeding ground for them, which is why the cage diving operations are based here. You are not in danger in the cage. You are, however, extremely aware that you are in the ocean with one of the most formidable animals that has ever existed, and that awareness is the entire point of the experience.
What Shark Cage Diving in Port Lincoln Actually Involves
The boat trip out to the Neptune Islands takes about 3-4 hours from Port Lincoln. The Neptune Islands are roughly 70km offshore and the crossing can be rough. If you're susceptible to seasickness, take medication before you go. This is not a soft suggestion. A seasick person on a shark cage diving boat is having a significantly less good time than they planned. The operators tell you this too. Listen to them.
The cage sits at the surface alongside the boat. You put on a wetsuit, get in the cage, submerge to about shoulder depth, and the sharks come to the boat attracted by chum and a tuna head on a line. The sharks approach, investigate, and pass by at distances that are sometimes close enough to touch (you don't touch them). The cage is completely secure. The operations are run by experienced operators with strong safety records. This is an extraordinary wildlife encounter, not an extreme sport.
The sharks themselves at the Neptune Islands are among the largest great whites in the world. The population is well-studied and the operators know individual sharks by their markings. Some of the sharks that come to the boat have been visiting for 20-plus years and are recognised by name. A 5-metre great white shark that has a name and a decades-long relationship with a boat is, somehow, more remarkable rather than less. You'll surface from the cage and need a minute. That's normal. Everyone needs a minute.
The sea lions at the Neptune Islands often swim around the cage while sharks are present. Watching a sea lion casually swim past a great white shark while you're in a cage between them is a very specific kind of cognitive dissonance that you will not forget. The sea lions are unbothered. The sharks are focused on the tuna. You are processing a lot of information very quickly. This is the correct response.
Port Lincoln Beyond the Sharks
Port Lincoln is Australia's seafood capital by tonnage. The tuna, southern rock lobster, oysters, and abalone from Spencer Gulf and the surrounding waters are exceptional and the town knows it. If you're spending a night here (and you should be, given the distance from Adelaide), eat the seafood. The town also offers swimming with sea lions and tuna in Spencer Gulf for people who want the wildlife encounter without the cage. The sea lion experience is genuinely extraordinary: wild sea lions that treat snorkellers as playthings, spinning and diving around you entirely voluntarily.
Back to the Adelaide & Surrounds hub, or check Kangaroo Island tours and the Barossa Valley while you're planning South Australia.
…Read more