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 geocaching containers, special edition coins, and micro containers, etc. | Geocaching Handbook by Layne Cameron, Paperback | Indigo Chapters