Festivities of invierno de Fonz Activity · Fonz, Cinca Medio, Huesca Image of Fonz, not of the place itself. Fonz honours San Blas, its patron saint, on 3 February: on the eve a bonfire is lit that burns all night with the residents gathered round, and on the day of the festival people climb the polished, soaped poplar pole topped with a rooster. The women hold a separate gathering of their own for Santa Águeda. Photo: Anonymous (Public domain) What to see and do in Fonz