Festivities of invierno de La Zaida (San Antón) Activity · La Zaida, Ribera Baja del Ebro, Zaragoza Image of La Zaida, not of the place itself. Festival of San Antón, on 17 January, in La Zaida, a municipality on the route of the Camino Jacobeo del Ebro whose rainfed lands towards Los Monegros support flocks of rasa aragonesa sheep. Photo: Diego Delso (CC BY-SA 4.0) What to see and do in La Zaida