Tagus International Natural Park, Nature reserve in Castelo Branco, Portugal.
Tagus International Natural Park spreads across the border between Portugal and Spain, combining river canyons, wetlands, mixed forests, and open agricultural areas along the Tagus River. The landscape shifts between wild river sections with steep banks and quieter zones where farming and wild nature coexist.
The protected area was officially established in 2000 to conserve the Tagus region for wildlife and natural ecosystems. This creation followed international agreements between Portugal and Spain to shield river habitats and support animal species that migrate across borders.
The park functions as a shared space between Portugal and Spain where both nations work together to protect nature along the Tagus River. You can experience this cooperation as you walk through landscapes that have been carefully managed for wildlife rather than human settlement.
The reserve is open year-round and welcomes hikers, birdwatchers, and photographers exploring its natural habitats. Dress in layers because river winds can be strong, and weather changes noticeably between seasons.
The park holds one of the lowest population densities on the Iberian Peninsula, allowing wilderness and farming to coexist naturally. This remoteness gives migrating birds and other animals safe stopping points during their journeys across the continent.
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