(Oops. There was a scheduling problem, but it must still be Friday somewhere)
You can zip line across Melbourne's Yarra River. At less than thirty seconds it is quicker than I remember the orgasms of my youth. Strapping in safely takes some time I suppose, as does unstrapping. The zip line with thirty seconds of pleasure at $60 is very popular with people lined up. Children can zip for just $50.
You probably don't remember that we zip lined in South Africa a few years ago. At one zip line, R missed his footing at a platform and he came backwards to the middle of the zip line, to much amusement among our fellow travellers. There goes R, and here comes R back again.
I iz not paying $60 to zip line, but it does look like fun.