Festivities of Caldearenas Activity · Caldearenas, Alto Gállego, Huesca Image of Caldearenas, not of the place itself. Festivities of Caldearenas on 13 June, in honour of San Antonio de Padua, in the settlement that gives its name to the municipality formed around 1900 around the station of the Canfranc railway after the merger of Aquilué, Estallo, Serué, Latre and Javierrelatre. Photo: Willtron (Wikimedia Commons) (CC BY-SA 3.0) What to see and do in Caldearenas