Perhaps the most popular of all GPS games is geocaching. This high-tech treasure hunt can provide hours of healthful, interesting fun. Game players use a handheld GPS device to hunt down a "treasure," which is typically an inexpensive trinket, trackable coin, or "bug." These treasures, known as geocaches, are stored in waterproof containers such as plastic kitchen storage containers or small lidded buckets and the like. The person who creates the geocache logs the coordinates on a website such as Geocaching - The Official Global GPS Cache Hunt Site. To play these GPS games, log on to a geocaching site and find the coordinates of a geocache in your area. Use your handheld GPS unit to track it down. Don't forget to leave a "treasure" in place of the one you score.

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Find out more about this type of GPS game in the Bright Hub article
What Is Geocaching? by Michele McDonough.
Photo credit: sxc.hu/Julia Freeman-Woolpert