is an outdoor treasure-hunting game 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.
typical cache is a small waterproof container containing a logbook
and "treasure," usually toys or trinkets of little value. Today,
well over 790,000 geocaches are registered on various websites
devoted to the pastime. Geocaches are currently placed in over
100 countries around the world and on all seven continents, including
was created shortly after the removal of Selective Availability from
GPS on May 1, 2000 because the improved accuracy of the system allowed
for a small container to be specifically placed and located.
first documented placement of a GPS-located cache took place on May
3, 2000, by Dave Ulmer of Beavercreek, Oregon. The location was posted
on the Usenet newsgroup sci.geo.satellite-nav. By May 6, 2000, it had
been found twice and logged one time.
I look for my 500th cache on Sycuan Peak.
there are the dangers involved in this sport.