Festivities of Colungo Activity · Colungo, Somontano de Barbastro, Huesca Image of Colungo, not of the place itself. The festivities of Colungo are celebrated in the municipality of the Parque Cultural del Río Vero, whose rock shelters with prehistoric Mediterranean Basin rock art were declared a World Heritage Site by Unesco in 1998. Photo: Rowanwindwhistler (CC BY-SA 3.0) What to see and do in Colungo