Find Marine Points of Interest-The GPS 152 comes preloaded with a marine
database that includes cities as well as nautical navigation aids: lights,
buoys, sound signals, day beacons and tide data. You can add even more
points of interest data to the 152 with its built-in one megabyte of
memory. And the 4-inch diagonal high-contrast display makes it easy to see
and navigate to waypoints or other places.