This passage is the highest point of the canal. It was necessary to dig three million cubic meters of earth and rock to make the canal pass: as much as …
At an altitude of 184 m, the Glomel trench is the highest point of the Nantes-Brest canal and the watershed between the Blavet and Aulne basins. The canal project and …
Nice walk of about 5 km. Not difficult, but unsuitable for people with limited mobility. This because of a crossing over large boulders that are not made.