Les Gorges de la Bienne - VTT / VTTAE
LIEU_DE_DEPART : HAUTS DE BIENNE
A journey to the heart of water ... An extraordinary geological and natural heritage, the along the renowned Ligne des Hirondelles. Walk along the deep gorges of the Biel, its forests and steep cliffs, overlooked by small villages that bear witness to history geological area of the massif.