Lighthouses

thumb|300px|Barnegat Lighthouse at the coast of [[Ocean County, New Jersey, U.S., facing the Atlantic Ocean at sunrise]] thumbnail|Aerial drone footage of the Roman Rock Lighthouse off the southern coast of South Africa.

physical phenomenon

Maritime urban legend related to the dangers of hubris and inflexibility

light beacons used for watercraft navigation in a shallow or dangerous channel or as position fixing

artificial pilotage and position fixing aid emitting light beams