Let a GPS Be Your Trail Guide: Touch screens make them easier to use, and a no-frills model costs just $150

摘要

HIGH-TECH GADGETS ON AN outdoor trek? Traditionalists may sneer, but a good GPS receiver can be a life-saver when you've taken a wrong turn. But you'd better learn how to use it before you've lost your way. GPS receivers you can take along on hikes aren't as easy to master as their car-bound brethren. So crack the manual to learn how to set way points, customize maps and so on. And remember to bring along an extra set of AA batteries (or a solar recharger - see the box at right). A dead GPS unit isn't even good for swatting mosquitoes.