The octave of Corpus Christi Activity · Zaratán, Campiña del Pisuerga, Valladolid Image of Zaratán, not of the place itself. The village's main festival, in June, brings out the monstrance and the banners of the brotherhoods and strings together eight nights of toasts by peñas, with bull-running through the streets of the old quarter. Photo: Abel Mostaza Prieto (CC BY-SA 3.0) What to see and do in Zaratán