3. The Voie Bleue on the 4 Rivières

The Voie Bleue (V50) is a 700km cycle route that runs from the Luxembourg border to Lyon, crossing France from north to south. From Vanne, via Ray-sur-Saône and its castle, the Voie Bleue cycle route quickly plunges down to the Saône, which is a sight to behold. Just like the boats coming and going as they pass through the Savoyeux tunnel. If you fancy a swim, there's the supervised beach at Autet.