For those who navigate along coasts, the rugged Garmin GPSMAP 78sc marine-friendly GPS is a perfect device, thanks to its BlueChart g2 coastal charts and a worldwide basemap. The built-in barometric altimeter of this Garmin navigator tracks changes in pressure to locate your precise altitude. This marine-friendly GPS also lets you wirelessly share your waypoints, tracks, routes, and geocaches with other compatible devices. Using the embedded track log of this Garmin navigator, you can save up to 10000 points or 200 tracks. With a hunt/fish calendar, the Garmin GPSMAP 78sc GPS receiver lets you know the perfect time for fishing and hunting.