Nantes-Brest canal

The Nantes-Brest canal is an artificial waterway stretching across five departments in Brittany, connecting Nantes to the south with Brest to the northwest. Multiple locks spaced throughout manage height changes, allowing boats to navigate through the varied terrain.

The waterway began as a strategic project in the early 1800s to strengthen connections between two major port cities during a period of political change. Its construction span decades and reshaped the region's infrastructure significantly.

Small villages cluster around the locks and bridges, forming the social centers where locals gather to walk and watch the water traffic pass. The towpaths have become everyday meeting places for people living along the banks.

Visitors can explore the waterway on foot or by bike along flat towpaths that extend for long distances. The best season for walking is May through September when weather is mild and access is easiest.

An underground passage runs beneath the city, linking the canal system to a major river in a hidden feat of engineering. This subterranean connection was created in the mid-20th century and remains unknown to most visitors.

Location: Loire-Atlantique

Location: Finistère

Location: Morbihan

Location: Ille-et-Vilaine

Location: Côtes-d'Armor

Inception: 1803

Official opening: 1858

GPS coordinates: 48.30380,-4.28970

Latest update: December 6, 2025 16:00