This greenway, accessible from the Euro Velo 6, which runs along the Rhone-Rhine canal, uses an old railroad line. It runs from Pfetterhouse to Dannemarie, down a gentle slope through the Largue valley, with its many ponds and typical Sundgau villages. Don't hesitate to make a detour into the heart of the valley's charming little villages, as this Voie Verte, which is very shady and pleasant in summer, runs right through the countryside outside the villages.