The Route of the Springs Activity · Corrales de Duero, Campo de Peñafiel, Valladolid A circular itinerary of thirteen kilometres links the springs of the municipal district and passes beside the arcaded houses and the traditional cellars of a village founded in the tenth century during the resettlement of the Duero. Photo: Juan Pablo Zumel Arranz (CC BY-SA 4.0) What to see and do in Corrales de Duero