- br br Best Bargain - Garmin GPSMAP 76 Waterproof Handheld GPS Reviewbr br Marine-friendly handheld GPS with 8MB Memory floats in water and is IPX7 waterproofbr Basemap of principle cities, interstates, highways, roads, and marine navigation aidsbr WAAS enabled Global positioning system (GPS) receiver continuously tracks and uses up to 12 satellitesbr 8 MB memory for downloading data from optional Garmin MapSource CD-ROMsbr Trip computer with currentaverage speed, timer, and trip distance