1 Lighthouses, lightships, and other maritime signals—such as lamps, beacons, and buoys—are a reference point for the routes of ships and boats, indicating the presence of specific dangers or stretches of sea that are particularly difficult to cross. Therefore, they fall within the scope of aids to navigation. 2 Lighthouses comprise a powerful light on top of a tower, pylon or other structure and are generally found on promontories, rocks or artificial islands and installations (Artificial Islands, Installations and Structures). In any event, they must be...
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