Festivities of invierno de Cretas Activity · Cretas, Matarraña, Teruel Image of Cretas, not of the place itself. Cretas's winter festival is held in the village in whose Barranco de Calapatá Juan Cabré documented the first group of Levantine rock art identified in Spain, included by Unesco on the World Heritage list in 1998. Photo: Manel Zaera (CC BY-SA 2.0) What to see and do in Cretas