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The signalisation system for the coasts of France and overseas territories includes : nearly 3000 beacons or lights, 2300 buoys, 1100 of which are with lights, as well as 3000 seamarks without lights.
As soon as vessels arrive in sight of the coast, it is useful to guide them into port. This is the task allotted to marine signalisation, whether it is fixed or floating. It is an indispensable complement to coastal navigation and has to allow sailors to mark the traffic channels, but also the many isolated dangers.