Eh. I live in Perth and I dive.

The reality is that you can go "shark diving" on any given weekend off the coast if you have your own boat and gear. It's not organised, but the locals know where the sharks congregate.

I also think this is a bizzare statement, since a lot of the existing tourism income at Ningaloo is based on whale sharks. Which are technically sharks. One would presume this policy isn't going to rule out the whale shark tourism based out of Exmouth? Because they never explicitly stated they were just trying to stop "great white shark" tourism, but "shark" tourism.