Los molinos del Guadaíra Nature · Alcalá de Guadaíra, Comarca Metropolitana de Sevilla, Seville The historic ensemble of Alcalá de Guadaíra was declared a conjunto histórico-artístico in 1984, and the banks of the Guadaíra river, with its old flour mills and the Oromana park, have been a protected Monumento Natural since December 2011. 1984 (conjunto histórico-artístico); diciembre de 2011 (Monumento Natural Riberas del Guadaíra) Photo: Ceciliska (CC0) What to see and do in Alcalá de Guadaíra