Excursión ciclista de un día de Nantes a Saint-Nazaire

Roll out from Nantes, a creative riverside city famous for its Machines de l’Île and the Château des Ducs de Bretagne, and follow the Loire west toward the Atlantic. This is a mostly flat estuary ride—about 109 km with gentle ups and downs—made for steady cruising and snack stops by the water.

The route strings together quiet roads, dedicated cycleways, and long levee paths. Expect a good mix of surfaces: plenty of smooth pavement but also extended compact gravel sections, so wider tires are your friend, especially after rain. You’ll pass wetlands, shipyards, and pieces of the Estuaire contemporary art trail, with big-sky views and often a salty breeze. Wind can be a factor near the mouth of the Loire—pack a layer.

Roll into Saint‑Nazaire, a port city known for the Chantiers de l’Atlantique shipyards, the submarine pens, and beachy promenades. If your line involves the big bridge, check conditions or local shuttle options before committing—exposed crossings can be wild. A satisfying full‑day ride with minimal climbing and plenty to see.