Balneario de Fuente Agria de Espiel Nature · Espiel, Valle del Guadiato, Córdoba Image of Espiel, not of the place itself. A mineral-medicinal spring in use since 1871-1873, which gave rise to a spa exploited during the 19th century for its curative properties. En explotación desde 1871-1873 Photo: Antonio Montilla Lucena (CC BY-SA 3.0) What to see and do in Espiel