Celtic Night of Porcía Activity · El Franco, Eo-Navia, Asturias Image of El Franco, not of the place itself. A Celtic music festival held since 1983 on the banks of the River Porcía, on the western edge of the municipality; it is one of the veteran events on the northern peninsular Celtic circuit and takes place outdoors in high summer. Photo: www.facc.info (CC BY-SA 4.0) What to see and do in El Franco