When we were living in Adelaide, we had a number of nemesis caches that we slowly worked our way through, visiting on numerous occasions, before we finally found them.
One particular cache in the CBD took us ages to find and nearly sent us going postal. This was a large part due to bad Sat Lock when we initially looked which had us repeatedly looking in the wrong spot but some of those city caches were quite frustrating as they fitted in to their environment so well.
Hopefully this city cache (an eclipse tin size by the way) won't make you go postal but if it does, there is a post office opposite :)
