You need to have this gadget if you are on an unknown hiking trail or the Grand canyon and do not want to be left lost because of that torrential rain wiping off all your trails and identification spots. The Bushnell Backtrack D-Tour which would cost you a $100 is a device to make sure you find your way back.  It is a GPS unit and has a rugged, weather-resistant body, grayscale LCD screen, an internal, rechargeable battery good for 48 hours of data logging, and lets you store up to five locations, with course taken, length in miles and yards, time, latitude, longitude, and other handy metrics to help you recall the exact location of your favorite camping spot or hiking trail.
