My cousin loves to do geocaching. It is a game where you look for a little case that someone else has hidden with something small in it. The goal is to use the coordinates (sp) given and find the hidden treasure. People hide these things all over the world. Once you find one, you usually sign a little slip of paper or note that you have found it. Then you leave it for others to find. It's a bit more complex than that. My cousin took me on a search for a few around here when he visited. It was kind of fun, but a lot of work for a look at a little treasure.