You really want to get a marine model if you are on the water as they have features you will find handy. The screens of the eTrexs are pretty simple and lack info that a mariner needs. They seem to be more of a casual land user series. Go to Garmin and do a comparison chart of marine models--it's a great feature they have on the site. I have an older Garmin 12XL (more equivalent to their current 12) and I am stoked on it. The new software they have out is pretty cool as waypoints are now in folders so you don't have to scroll all thru them, amongst other things. The 76 is a nice model. Be sure you look at all the variations of a particular model as you might not want/use/afford all the features. The 76 ranges from $170 to 350 depending what you get.

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Pro-Cure Scents
www.pro-cure.com