Describing the exciting and adventurous world surrounding geocaching--a worldwide hunt in which treasures are located using global positioning system (GPS) devi

Ten years after it all began, geocaching is still going strong. Both the number of geocaches and the number of geocachers are in the millions, in more than 100

This book introduces the reader to the fast-growing outdoor sport of geocaching, which combines aspects of treasure hunting, high-tech navigation, and explorati

A New York Times-Bestseller! For twelve-year-old Emily, the best thing about moving to San Francisco is that it's the home city of her literary idol: Garrison G

Find a high-tech hobby in the great outdoors! Dig into this fast-growing detective sport that's fun for all ages Once you get your coordinates, your GPS receive