The ultimate global game revealed! The Complete Idiot"s Guide(r) to Geocaching, Second Edition is a comprehensive, yet entertaining and easy-to-understand book for getting started and having fun with geocaching-the high-tech version of hide-and-seek for global positioning system (GPS) users. In this edition, two new tools of the game-Waymarking and Wherigo-are included. ? The Geocaching website, which began operating in 2000 and is owned by Groundspeak, Inc., is the first and currently the largest website devoted to Geocaching ? Today, well over 800,000 geocaches are registered on various websites devoted to the pastime ? Geocaches are currently placed in over 100 countries around the world and on all seven continents, including Antarctica