Geocaching is an outdoor, high-tech game of treasure hunting. It is a combination of navigational skills with outdoor adventures. You will learn how to read a map, navigate with a compass and use a Global Positioning System (GPS) effectively to seek out hidden treasures called caches, anywhere in the world.

The geocaching handbook : the guide for family friendly, high-tech treasure hunting
Layne Cameron ; with a foreword by Dave Ulmer.
Guilford, Conn. : Falcon, c2011.
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 edition of The Geocaching Handbook covers everything the aspiring geocacher needs to get started, and it provides plenty of information to help practicing geocachers take their skills to the next level. Learn how the game began-in a foreword by its founding father, Dave Ulmer-and discover how to: * Select a cache listing and begin your hunt for the treasure * Buy a GPS receiver and use it to navigate to the cache * Create and hide your own cache for others to find * Practice backcountry safety and geocaching etiquette * Play other geo-games, such as "Are U Nuts?" and "Geodashing" * Connect with other geocachers through clubs and geo-events
The joy of geocaching : how to find health, happiness and creative energy through a worldwide treasure hunt
Paul and Dana Gillin.
Fresno, Calif. : Quill Driver Books, c2010.
Ten years ago, it didn't exist. Now it's the most popular new outdoor game of the 21st century, played by millions of people in over 100 countries around the world.

A typical cache is a waterproof container containing a logbook and small trinkets, such as coins or marbles. Caches can be found in local parks, remote areas, city streets and malls. They can be as small as a film container and as big as a trash container.

To find these containers you need a set of coordinates. Most are posted online along with clues about the location. It might be best to plan your route with a set of coordinates because GPS receivers show the shortest and straightest path between two points and may not account for impassable streets, waterways or mountainous regions.

Geocaching Safety

Take the same safety precautions you would if you were going on a hike.

Tell others where you're going
Use sunscreen
Bring water and a cell phone

more hints

When you find the cache there should be a logbook for you to make note of the date, and what, if any, trinkets you traded. Caches can also have a theme. For example a cache creator may indicate the cache is a button cache and that all items traded should be related to buttons.

The concepts you can learn and the places you visit from Geocaching can apply to all your outdoor travels and you will become an expert in navigation and be more aware of the outdoors and geography.

Article by: St. Louis Public Library staff