Navigate by land and sea with the Garmin GPSMAP 620 Crossover GPS unit. It effortlessly shifts gears between marine and automotive modes. It features a chart plotter with dual marine and automotive mode, a high-sensitivity GPS receiver and a rugged case with IPX7 waterproof design. When supported by the marine mount, you'll have at-a-glance access to marine data. You'll get a 3-D mariner's-eye view above the waterline and fish-eye view below it. When placed in the optional automotive mount, the automotive mode is automatically activated and the unit becomes a slick street navigator. It boasts a brilliant 5.2" WVGA high-resolution, touch-screen display with an intuitive interface so you can navigate with confidence. Route planning has never been easier with spoken turn-by-turn directions. It's NMEA-0183 compliant for adding to an existing marine network. BlueChart g2 Vision maps allow access to premium mapping features, high-resolution imagery and aerial photos of ports, harbors, marinas, waterways, navigational landmarks and points of interest. Comes standard with worldwide basemap. Accepts BlueChart g2 Vision card, automotive mount (available at garmin.com) and City Navigator NT (available at cabelas.com).