After breakfast on board, depart for the optional excursion to the Ardèche Gorge, then head towards Bourg Saint Andéol across the Plateau des Gras to reach Vallon Pont d'Arc. Here, the Ardéche has hewn through the cliff to form a great natural arch, "the Pont d'Arc". From here, the itinerary follows the famous Gorge Trail from where you can see the harmonious meanders of the river. Return to the boat in La Voulte, where you will enjoy lunch on board. In the afternoon, there will be an optional excursion in the Vercors. Depart by coach toward Loriol, where you will visit a wine cellar and taste the famous Clairette de Die. Then, follow the road of the Rousset mountain pass, with its magnificient panoramic view over the Vercors Plateau to Vassieux en Vercors, La Chapelle en Vercors and Pont en Royans, famous for its suspension houses. Return to the ship in Tain l'Hermitage for dinner.