The Albufera is a freshwater lagoon and estuary on the Gulf of Valencia coast of the Valencian Community in eastern Spain. It is the main portion of the Parc Natural de l'Albufera de València ("Valencian Albufera Natural Park"), with a surface area of 21,120 hectares (52,200 acres). Rice growing is another traditional use, though more recent (since the 18th century); it has great economic and environmental importance because plant and animal species that have disappeared from the lake itself still live in the rice fields (where the water of the lagoon is purified). These rice paddies also provide food and shelter for many birds.