This photo was sent in by KJ. She writes: "The [picture] was taken at a place called Garden Island, South Australia. Garden island is an amazing place where the ocean meets the port river. It is very popular for kayaking and fishing. Its also very well know for the dolphins who can be seen very regularly, in fact we have never been there and not seen them. This urinal had a duel flush system for some reason which I cant quite work out!"