We got into it when Andy bought a Gpsv to help us get around, read the bumpf that came with it, found the web site and the rest as they say is history, since then we have recruited a few others into it(George&Mildred, The Ollies) who have in turn got others into it(ChoccyM&M's, Pieces of Eight, Murray Mint, Squirrel, Fish&Baby Bear), the caching family tree seems to be ever growing!