Geocaching is an outdoor activity in which the participants use a Global Positioning System (GPS) receiver or other navigational techniques to hide and seek containers (called "geocaches" or "caches") anywhere in the world. A typical cache is a small waterproof container (usually a Tupperware or ammo box) containing a logbook. Larger containers can also contain items for trading, usually toys or trinkets of little value. Geocaching is most often described as a "game of high-tech hide and seek", sharing many aspects with orienteering, treasure-hunting, and waymarking.

Geocaches are currently placed in over 100 countries around the world and on all seven continents, including Antarctica.  As of November 22, 2009, there are over 945,023 active geocaches over the world.  

For further information about Geocaching in Grants Pass or Josephine County, please visit The Geocaching.com website.