When you think of the French coastline and the beaches, I know that what pops into your mind is the CĂ´te d'Azur and the Mediterranean. The CĂ´te d'Azur is indeed beautiful, but not only is it not France's only coastline, it's not even France's longest coastline. For that, you need to head to the Atlantic -- with wide, almost-white-sand beaches that expand down for around 1000km from the North Sea down to the Spanish border.