Easy hikes and walks around National Park Douro Internacional

The Contrabando Viewpoint is located in Hinojosa de Duero (Salamanca), within the Arribes del Duero Natural Park, a hiking and tourist route situated on the border with Portugal. From the viewpoint, you can enjoy panoramic views of the Duero River, the Saucelle Waterfall, the border with Portugal, and geological and cultural formations such as: Cabeza de Moncalvo: a hill with the remains of a pre-Roman hill fort. Peña de la Vela, Poyo Durón (in Portugal), and Cerro del Reventón.

The Escadaria de Acesso ao Passeio Ribeirinho significantly shortens the walk for pedestrians between the path along the riverbank and the parking lot at the road bridge over the river. According to the Komoot map, you previously had to walk under the bridge to reach the top in a long loop. The stairs were rebuilt in March 2024 by the Município de Figueira de Castelo Rodrigo (the municipality), as the old structure was completely destroyed and abandoned. They consist of raised wooden structures resting directly on the ground. Barca d'Alva is a popular stop for Douro cruises, and these stairs facilitate the descent to the river quay and the walking path, from where you can enjoy breathtaking views of the Douro, the bridge, and the surrounding gorges. They contribute to the revitalization of the place, which had lost importance since the closure of the railway line (the Linha do Douro) in 1988. Today, it is a highlight for nature lovers and photographers, especially at sunset.

The bridge was designed and built in 1955 by the renowned Portuguese engineer Edgar Cardoso. It is considered the first motorway bridge in the Portuguese section of the Douro River and is a concrete arch bridge with a length of approximately 300 meters. It is named after the Portuguese naval officer and colonial administrator Almirante Manuel Maria Sarmento Rodrigues, who served as governor of Guinea and Mozambique under the Salazar dictatorship and later became Minister of Colonies.

When it was closed in 1985, the region lost its direct connection; the bridge fell into disrepair for decades and was inaccessible for a long time. Only in recent years has the entire route been reopened to hikers and visitors as the "Camino de Hierro" (Iron Way). Crossing the bridge offers spectacular views of the Águeda Gorge and the terraced landscapes of olive, almond, and vineyards. Today, it is an industrial monument and also a tourist highlight in the Arribes del Duero Natural Park.

The bridge was built as an iron truss structure following the French school's model (inspired by Gustave Eiffel) and spans the deeply cut Río Águeda, approximately 250 meters long and about 20 meters high above the river. The supporting structure consists of riveted steel girders resting on massive stone piers. It was part of the cross-border connection between Spain and Portugal, connecting Salamanca to Porto. Due to its challenging topography—gorges, steep mountain slopes, and narrow valleys—the line was considered one of the most spectacular railway lines in Europe, with a total of 20 tunnels and 13 bridges, of which the Águeda Bridge was the most famous. It served as the gateway to the La Fregeneda–Barca d'Alva border station, where the crossing into Portugal took place.

The former railway bridge over the Río Águeda near La Fregeneda is one of the most impressive structures on the disused La Fuente de San Esteban – Barca d’Alva railway line (opened in 1887, closed in 1985).

The Barca d'Alva train station retains some traditional Portuguese tiles decorating its main building, despite its state of disrepair. These tiles, typical of Portugal's railway heritage, often depict rural scenes, landscapes of the Douro River, or classic decorative motifs in blue and white.

The first bishops of Miranda had to live in the Castle. It was only in 1601 that construction began on the Episcopal Palace and the Seminary. When it was completed, more than a century later, its opulence was no less than that of the Cathedral, whose Renaissance style it imitated. The Palace was built around a central courtyard, surrounded by a cloister with lowered arcades, on monolithic columns. And, although badly damaged by successive fires during the 17th and 18th centuries, it was the definitive transfer of the seat of the Diocese to Bragança, in 1780, that caused it to fall into rapid ruin. The shadow of its monumentality can still be seen today in the cloister and on the portico of the Seminary. However, despite its state of ruin, its symbolic power remains because the bishops always continued to engrave their names on the respective memorial, at the entrance to the Renaissance portico of the first Episcopal Palace of the Diocese.