Good idea, Roger. As to the wilderness, the convicts were quite environmentally conscious - not the convicts, of course, but some of our founding fathers were, and the Royal National Park south of Sydney was the second National Park in the world to be created. I think our local one, Ku-ring-gai was the fourth. This one, Garigal, was created fairly recently, but the whole area contained reserves. I was amazed at the trees when I first arrived. There was an uproar about logging down south (quite rightly at the time) and when I looked out over the vista of bush as far as you could see, just north of Sydney, my thoughts were, "What are they going on about?" The number of rivers, ocean and beaches around Sydney help, I think.