Lighthouses and Other Structures

Lighthouses are the most prominent visual aids. Each has a unique combination of colour scheme (daymark), light character, and sometimes a fog signal. They are charted with a star symbol and magenta 'flare' showing the light.

Other structures include beacons (fixed structures on rocks or shoals, may or may not be lit), light vessels (anchored ships with lights, used where a lighthouse cannot be built), and LANBY buoys (Large Automatic Navigation Buoys — replace light vessels in some locations).