Natural Park Los Arribes del Duero, Zamora/Salamanca, Castile and Leon - Spain
Los Arribes del Duero Natural Park, located in the south-west of Zamora and north-west of Salamanca close to the Portuguese border, contains the deepest and most extensive granite canyons in the Iberian peninsula.
It was also declared a 'Special Bird Protection Zone' in 1990 and is home to a number of important birds of prey including the golden eagle, the eagle owl and the peregrine falcon. The park also contains one of the most spectacular waterfalls in Spain: the "Pozo de los Humos" (Well of Smoke), with water cascading over a drop of more than 200 meters. It is an ideal location for hiking, cycling and water sports.