The lagoons represent a 'steppic wetland,' a rare ecosystem where water evaporates, leaving behind concentrated salts in the soil.
It is one of the most important population centers for the great bustard (Otis tarda) in the world.
The area is an endorheic basin, meaning water flows into the lagoons but has no natural outlet to the sea.
The salinity of the water is caused by the dissolution of Triassic salts present in the underlying geological strata.
The reserve is designated as a Special Protection Area (SPA) for birds and a Ramsar site of international importance.
Lagunas de Villafáfila is a nature reserve in the Tierra de Campos region of Zamora, characterized by its unique endorheic saline lagoons. The site is a primary European stronghold for the great bustard, one of the world's heaviest flying birds. Its landscape consists of three main permanent lagoons—Laguna Grande, Laguna de Barillos, and Laguna de las Salinas—surrounded by numerous smaller seasonal water bodies. The soil contains high salinity levels, which supports a distinct halophytic flora adapted to extreme conditions. During the winter months, the area serves as a critical wetland for thousands of migratory birds, including greylag geese and various duck species. The visitor center provides educational exhibits regarding the hydrological cycle of these shallow, closed-basin systems. Much of the surrounding terrain is used for traditional dryland cereal cultivation, creating a mosaic landscape. The environment is strictly protected to minimize human impact on nesting and migratory bird populations.
The bird observation hides overlooking the Laguna Grande provide the best vantage point for photography without intrusion.
Bring high-quality binoculars or a spotting scope, as wildlife remains at a significant distance to avoid disturbance.
Visit the 'Casa del Parque' visitor center first to obtain current information on which lagoons currently hold water, as levels fluctuate seasonally.
Wear muted, neutral-colored clothing to blend into the steppe environment and prevent flushing the birds.
Do not attempt to walk across the salt crusts or dry lake beds, as the terrain can be unstable and trespassing disturbs protected habitats.
The visitor center may have restricted service on Mondays or during the winter break; verify local seasonal calendars before arrival.
Stay strictly on marked paths and observation hides to avoid disturbing nesting wildlife; silence is required near hides.
