4 March 2013 by Shifali Rao
While normal GPS devices help you navigate your way on land, a marine GPS performs pretty much the same stuff on the sea. Most marine GPS devices come with features beneficial for marine activities, like the "fish finder", tide prediction etc; and also marine cartography. So they hold information related to nearby coasts, shallow and deep waters; and are able to penetrate signals through fog and storm.
Marine GPS units are available as hand held models, mountable units that you can place on the stern of your boat; and fixed models. While looking for the best Garmin marine GPS, it is recommended that you purchase one that isn't fixed and can work as a car GPS too, with inland mapping features, as this would not limit its usage to boating activities and you could use it on a daily basis.