This book introduces the reader to the fast-growing outdoor sport of geocaching, which combines aspects of treasure hunting, high-tech navigation, and exploration.New to this book:--Updates to technology and use of social media.--Full chapter on smartphone apps.--Updates to photography—showing more technology and diversity of participants.--Mention of National and State Parks, which are now promoting geocaching.--Updates to swag, with official geo...

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 countries, and continue to grow. This fascinating, high-tech yet family-friendly outdoor activity—which combines aspects of treasure hunting, cutting-edge navigation, and exploration—may be the fastest growing new sport on the planet. But there is much more to geocaching than what most people know.This revised and updated ed...