Introduction

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.