The Garmin eTrex family consists of six members - eTrex, eTrex Camo, eTrex Summit, eTrex Legend, eTrex Venture and eTrex Vista.

The family retain same basic features one of best-selling handheld GPS systems on market, and has adapted them to add some unique features to make each of them perfect tool for their intended users.

Some examples of hiding places are in holes at base of large trees, holes in face of a cliff, and some are even found in urban areas. One is under a bridge accessible only by rope. Another clever place was created when a cable company worker attached an empty cable connection box to side of a building.

As you can imagine, public parks are popular places for hiding caches. However, they're not allowed in National Parks in U.S. Geocachers, being outdoor sort of people, are mostly ecologically--minded, and there is even a "cache in trash out" program that promotes participants picking up trash that they may find while hunting treasure. Many places require permits for placing caches. Park authorities' main concern is damage to sensitive areas such as wetlands or locations of endangered flora or fauna.

GPS receivers start at about $75.00 US and can be purchased at some department stores, sporting goods stores, or ordered online. Amazon.com often has very good prices. Geocaching really is a lot of fun and it's a great way to get outdoors and get some exercise.