Electronics help. Markers are charted. But what do you do when the plotter says you should steer to a point and your own eyes tell you to steer toward another marked by an off-station buoy? Read the water, look at the soundings on the chart, and hail other boaters on the VHF for advice. It’s also a good idea to subscribe to the Local Notice to Mariners, the Coast Guard’s weekly update of, among other things, missing and off-station aids to navigation (navcen.uscg.gov).