Tech-savvy adventurers around the world are flocking to the sport of geocaching. It’s a sport the whole family can enjoy, and the technology is a snap to learn. (See our Aug. 5 & 7 posts.) Once you’ve mastered the basics though, real enthusiasts want more. When you’re ready to take geocaching to the next level, you’ll want to upgrade your portable handheld GPS unit. Naturally, you’ll still want the solid features found in basic handheld GPS models: lightweight, compact, long battery life, waypoint storage, and screen readability (see our Aug. 5 post for details). But you’ll want to upgrade to a GPS unit that also offers the following advanced features:

• A WAAS-enabled GPS unit provides superior accuracy and can pinpoint waypoints to within 10 feet 95% of the time.
• A built-in compass is particularly convenient in tracking the cache in the final critical 100 feet.
• An altimeter shows you how high up to search for vertically-hidden caches.
• Mapping capabilities give you the big picture and make navigation a snap. They allow you to download maps to your unit that give you a picture of the terrain.
• An external antenna improves signal reception in difficult terrains and under heavy tree cover.

ActionGPS carries superior portable handheld GPS devices for the serious geocacher. The Garmin Colorado 400i handheld outdoor color GPS can track waypoints from the city to deep backcountry trails. WAAS-enabled with a built-in electronic compass, barometric altimeter and mapping capabilities, the Garmin Colorado 400i keeps you on track when you’re searching out even the most difficult geocaches. Visit Action GPS for complete details on the Garmin Colorado and other excellent geocaching GPS devices.