The Marisma de Hinojos is a salt marsh about 50 km north of the city of Cadiz, in the autonomous region of Andalusia, Spain. "Marisma de Hinojos" means "salt marsh of fennel plants". It lies within Doñana National Park (Parque Nacional de Doñana) on the Costa de la Luz.
It is one of the sites suggested for the location of the lost city of Atlantis. [1]