How about this one..
July, 1981 I think it was a Monday morining, at the Augusta Crystal Caves.
The wally caretakers had left the main entry, chain mesh gate lock open.
It was about 5.30am, just before the sun started coming up, so my girlfriend and I went in & down the steps with a torch, then got down in the dim light and did our thang while she hung on to the metal hand rail. It was really spooky down there and I could not keep it up for too long, so we later continued up at ground level, against a tree, next to the entry gate, like animals.
Hi Margaret N, if your reading this, remember me? he he he.