We went to La Cité de la Mer which is a sort of museum/aquarium/not-sure-what in the town of Cherbourg. It looked cool at first but then at the beginning we went on this sort of family movie/ride/not-sure-what which was a total waste of about 1 hour of our lives. The aquarium was more like a big fish tank in someone's house. The only real cool thing was the Redoutable, which was the first SNLE [Sous-marin Nucléaire Lanceur d'Engin (lit. "nuclear-powered device-launching submarines")] submarine of the French Navy, and the largest submarine in the world open to the public.