With the introduction of the personal GPS unit, people everywhere have been learning to use these new devices and participating in what can only be called a high-tech treasure hunt. By logging on to a geocaching website, anyone can locate coordinates to a hidden cache, plan their route, and be on their way with map, compass, and GPS receiver. The hidden cache contains a logbook and a number of trinkets that can be traded by fortunate seekers. This book will explain everything you need to know to participate in this fun outdoor activity.