Geocaching is a family-friendly, high-tech treasure hunt that combines respect for the environment with a sense of adventure. This activity involves placing or looking for a cache using global positioning system (GPS) equipment.
The treasure hunt is initiated when an individual hides a cache—normally a waterproof container with small items inside—and records its location with a GPS unit. That person then posts the GPS coordinates and a description of the cache on the official geocaching website. Other participants, called geocachers, will try to find the cache using the coordinates. When a cache is found, the geocacher signs a logbook, then takes an item from the cache and leaves a new one for others. .