But...despite having thousands of lakes, reservoirs and flooded quarries, and hundreds of thousands of active scuba divers, not to mention millions of tourists each year, I don't think we've got a single inland scuba park in the whole of Australia.
Peter
I think it's to do with our demographics. 80% of Australians live within 120km of the coast and 50% of us live within 12km of the coast. It's even more extreme if you isolate Western Australia. I'd be much more willing to drive a couple of hours to the coast than dive in a flooded mine.
I suspect it'd be a silly exercise to set up a dive park anywhere except a 'major' city/town. Our biggest inland city is Canberra with a population of 403,118. But even here, it's only a couple of hours drive to the coast.
Our next biggest inland city, Toowoomba comes up at #15 and only 128,600 people, but again is only a couple of hours from the coast.
Our first real inland city is Albury-Wodonga, with only 104'000 people, of which I'd guess not many are divers!
I have no real basis for this, but I wouldn't think many tourists would use an inland dive park. Isn't one of Australia's major attractions the beautiful coast and barrier reef? I sure wouldn't travel here to dive in a farm dam when some of the world's best diving is accessible.
Maybe we're just not that into diving unless we live right on the coast, but I don't see the appeal of diving in a flooded mine. I personally dive for the wildlife, not for the novelty of breathing underwater. Each to their own, but I don't think I'd use a facility like this.
The American distribution isn't nearly as extreme as in Australia. There are significant populations scattered throughout USA.
I randomly picked a couple of places smack bang in the middle of USA.
Lincoln, Nebraska has a population of 254'000
Denver, Colorado has a population of 255'000.
Both are about 1500km from the ocean. Australia just doesn't have anything like that!
But then again, lots of these quarries in USA are close to the sea... Glad you're doing the research to find out! I could be very surprised.