Cluses and viaducts of Morez

On this walk, discover the many viaducts and tunnels that make up part of the Ligne des Hirondelles, the railway line linking Dole to Saint-Claude. The Morbier-Morez section is the most spectacular, with cliffside viaducts and a horseshoe-shaped tunnel.

The route also allows you to admire the relief of the site, thanks in particular to a number of viewpoints (Roche au Dade lookout, Crottes balcony). You can also discover the Trou Bleu, a natural curiosity that is nothing other than the resurgence of the Bellefontaine and Mortes lakes.

> You can shorten the tour by taking the train between Morbier and Morez stations.