An excuse to go outside and travel, combined with the fun of a hunt, and the sociability that results from meeting other Geocachers. Given a bad name by people who don't think out their placements -- a good cache should have both permission from the land owner and a reason for being there besides the cache itself.

A great game where people hide boxes (or caches) of goodies all over thw world and register the geographic coordinates on www.geocaching.com. Using a GPS unit, users are then able to go hunting for these boxes and record in the journal, take or leave items for others, and/or transfer a Travel Bug to another location.

a way to use multibilion system for finding plastic boxes in the forest

Geocaching is the use of virtual technology to find drunken homeless men lurking in arboretums. Or random dollar store crap. If you take the man home, you have to leave something of equal size behind.

A sport in which the participants
1) Loiter suspiciously in public places that lack adequate security
2) Hide an unknown package in a high-traffic area
3) Brag about it at www.geocaching.com
4) Dare others to go find and open the package.

Letterboxing for pussies.

Geocaching is a sport that is perfect for nerds. The participants can use their computers and high-tech Global Positioning System devices to hunt down and dig up objects that have little or no intrinsic value. Think if it as an Easter egg hunt for adults who have not yet grown up. Peter Pan prancer-types, mostly.