In order to provide the safe navigation for various vessels, day navigation marks with bamboos and navigational lights fixed on country boats / beacons have been provided between the Bangladesh Border and Dibrugarh.
12.
It stands above the sea on the crest of a low hill in Sainte-Adresse, now a suburb of Le Havre, and doubled as a navigation mark helping other sailors avoid the hazards in the approach to the port.
13.
Although it is still an important navigation mark, its importance has been decreased over the last century by the use of Boston Harbor's North Channel for most large vessels entering the harbor, which is marked by Graves Light.
14.
It was built in the shape of a white cross and was such a good navigation mark for the Luftwaffe, that it was rumoured that there were standing orders to avoid bombing it-hence its popularity with celebrities and the wealthy.
15.
Moulin de Rozel was a mill built in 1799 and dismantled in 1916, later converted to an artillery observation post by the Germans in the occupation of the Channel Islands now a Jersey listed building, it also serves as a marine navigation mark.
