Las Tablas de Daimiel are provided with two types of water making an unusual ecosystem: the Guadiana contributes fresh water, while its tributary the Gigüela is brackish.
Der er to typer vand i las Tablas de Daimiel hvilket giver et usædvanligt økosystem: Guadiana bidrager med ferskvand, mens dens biflod Gigüela er brak.