Garmin GPSMAP 492

This GPSMAP gives you the cartography you need to venture offshore. This versatile unit comes ready to launch with preloaded marine map detail utilizing the new BlueChart g2 technology. Coverage is for U.S. coastal areas, including Alaska and Hawaii. Features include integrated mapping, 2D or 3D map perspective, tide and current data, improved IALA symbols, navaids, marinas, boat ramps, roads, and more. The unit accepts preprogrammed data card for loading additional map coverage of inland lakes or BlueChart detail for other regions.