Complejo Endorreico de Utrera Nature · Utrera, Bajo Guadalquivir, Seville Image of Utrera, not of the place itself. Nature reserve of about a hundred hectares formed by the lagoons of La Alcaparrosa, Arjona and Zarracatín, a refuge for birds such as mallards, common pochards and avocets. Photo: Tirithel (CC BY-SA 4.0) What to see and do in Utrera