Laguna de Zóñar Nature · Aguilar de la Frontera, Campiña Sur, Córdoba The Laguna de Zóñar, in Aguilar de la Frontera, is the only permanent natural lagoon in Andalusia, with a 66-hectare reserve and depths of up to 16 metres, fed mainly by groundwater. Photo: Baldomorejon (CC BY-SA 3.0 es) What to see and do in Aguilar de la Frontera