Geocaching is a type of global treasure hunt of people looking for caches, or hidden stashes of objects. Geocaching may also be described as a series of hide-and-seek games, where hiders provide online clues for seekers. Seekers use global positioning system (GPS) devices to find hidden
caches
.
Caches
are the hidden treasure. After registering online, geocachers look for coordinates (the longitude and latitude) of
caches
.
Caches
have two or three parts: a waterproof container, a logbook to list the people who visit the
cache
, and sometimes a low-cost trinket or geocoin. (
Geocoins
are metal medallions made by individual
geo
cachers
or organizations. Like other
cache
items,
geocoins
are not worth much money.) Common materials found inside
caches
might includeforeign currency, keychains, ornaments, or booklets. Valuable objects, food, or other items that could be easily damaged are not allowed in geocaching.
Although
caches
can be hidden (as false rocks or behind real ones), they are not buried.
Latitude
and
longitude
provide the
caches
location.
Geo
cachers
also give clues online. For example, a
cache
may be hidden on one side of a tree, or may only be visible from a certain angle. Because
geo
cachers
want the hobby to remain safe for people of all ages,
caches
are located 150 feet from railroad tracks.
Some
caches
are drive-up (also called
cache
and dash), but most require a good walk. For this reason,
geo
cachers
are advised to bring a map, a GPS device, an extra set of clean clothes, and an umbrella.
Since geocaching is generally an outdoor activity, the participants are required to know their environment. Travelers sometimes get to know an area they are visiting by trekking to find
caches
, while weekend
geo
cachers
notice features in their own habitat.
Geocaching is a way to learn about the
environment
and help clean it up.
Cache
in, trash out is a common activity. Earth
caches
(developed by the Geological Society of America) provide educational lessons about the physical geography of the
caches
region.
The hobby has changed a little since its start in Oregon in 2000, when it was called geostashing. Geocaching was started by a group of people who were interested in technology and geography. They used GPS devices and the Internet to re-invent the older hobby of letterboxing. Letterboxing is a lot like geocaching, but the clues are provided in booklets or other printed material.
As geocaching has grown, virtual
caches
, or
caches
that don't involve an actual physical object, are no longer allowed. Most of the time, these virtual
caches
involved getting
geo
cachers
to a historical site or scenic vista. Waymarking is similar to virtual geocaching.
Waymarking
clues lead participants to interesting spots or trails. Some national parks and wilderness areas do not allow geocaching, although they encourage
waymarking
as a good way to see the area.
Many state and local parks organize or participate in their own geocaching events. Some may be tied to historical or seasonal events (a Mardi Gras
geo
cache
in New Orleans, Louisiana, for example) or may focus on local
environmental
opportunities (a canoe-in event in Minnesota.)
Geocaching has evolved from a small hobby to huge, well-organized treasure hunts for people of every age and ability. There are nonprofit organizations, as well as businesses for geocaching. The largest is geocaching.com.
Fast Fact
Free Cache
According to geocaching.com, there are more than 2 million active caches hidden around the world.