I new to GPS. I got this new one and the manuals are a joke when it comes to telling you how to use it for a newbie. Can anyone recommend a book or a website that will help me understand it more clearly. Ive got the basics (I think). I want to use it for "back tracking" when I'm on the ocean or unfamiliar lakes when I'm on my Jetski, and for Geocaching. Thanks in advance.
Keith