It is one of the only two regular breeding sites for greater flamingos in the entire Mediterranean region.
The lagoon is an endorheic basin, meaning it has no outlet and water leaves only through evaporation, leading to high salt concentration.
Salt extraction occurred at this site from Roman antiquity until 1951.
The water depth rarely exceeds 50 centimeters even during peak rainy periods.
During years of severe drought, the lagoon can dry out completely, which impacts the nesting success of the flamingos.
The reserve is part of the 'Ventanilla del Visitante' network managed by the Andalusian regional government.
Reserva Natural de la Laguna de Fuente de Piedra is the largest lagoon in Andalusia and a vital breeding ground for the greater flamingo in the Iberian Peninsula. The site consists of a 1,364-hectare endorheic lake characterized by high salinity levels due to groundwater evaporation. The reserve is a designated RAMSAR site of international importance for waterfowl conservation. Visitors can access specialized bird hides along the perimeter to observe seasonal colonies that can reach up to 12,000 breeding pairs. The lake's salinity is historically linked to the exploitation of salt flats dating back to Roman times. It functions as a critical wetland for migratory birds traveling between Europe and Africa.
The viewpoint at the José Antonio Valverde Visitor Center, which overlooks the main nesting areas.
Bring high-quality binoculars or a spotting scope as the birds often congregate in the center of the lagoon.
Stick strictly to designated paths and bird hides to avoid disturbing the sensitive nesting colonies.
Check the official visitor website before arriving to confirm if the lagoon currently contains water, as levels fluctuate significantly by season.
Do not attempt to walk onto the lake bed, as the mud is highly unstable and the area is a protected habitat.
The visitor center may have seasonal closures on specific weekdays; check the official portal before traveling.
Maintain silence near bird hides to avoid flushing the flocks; pets are strictly prohibited in the nature reserve area.
