About 15 years ago, my boss at that time mentioned that his family enjoyed geocaching together. He explained what it was, and I thought it sounded interesting, but didn't think about it again. Last summer, I went to a professional development class that discussed using gps to teach longitude and latitude to students. As part of the class we each received a basic Garmin gps handheld unit. I decided that I had to give it a try, so my girls & I spent some time last summer geocaching and we enjoyed it. I didn't do anymore geocaching during the school year, but resumed again this summer using the iPhone app which is so much better than the simple gps unit I had. Can't believe I waited so long to give it a try!