The park contains the Pulo do Lobo, a narrow gorge where the Guadiana River is forced through a series of steep, jagged rock walls.
It is recognized as a Special Protection Area (SPA) under the EU Natura 2000 network due to its avian importance.
The region hosts the rare Bonelli's eagle, which utilizes the inaccessible cliffs for nesting sites.
Traditional dry-land farming practices, such as cereal cultivation, are actively maintained to support the steppe bird populations.
The park's territory overlaps with the historic Mértola area, which is known for its archaeological significance as a former Roman and Islamic center.
Guadiana Valley Natural Park is a protected landscape in the Alentejo region of Portugal, centered on the lower course of the Guadiana River. It serves as a primary conservation site for birds of prey, specifically supporting the breeding population of the endangered Spanish imperial eagle and the black vulture. The park's landscape features a mix of Mediterranean scrubland, extensive cereal steppes, and steep river valley cliffs. It occupies approximately 70,000 hectares of territory within the municipalities of Mértola and Serpa. The geological composition includes ancient schist formations and quartzites, which contribute to the distinct topography of the river corridors. The park functions as a crucial sanctuary for biodiversity, managing habitats to sustain both avian and terrestrial Mediterranean fauna.
The observation deck overlooking the Pulo do Lobo waterfall gorge.
Bring high-quality binoculars, as the park is a prime location for raptor observation.
Stick to marked trails, as the terrain can be rugged and prone to sudden weather changes.
Carry adequate water and supplies, as facilities are sparse once you leave the village of Mértola.
Attempting to hike during the peak heat of midday in summer; attempting to navigate unmarked backcountry trails without a map.
Avoid excessive noise near nesting cliffs, maintain distance from wildlife, and do not remove geological samples or vegetation.
