Guadiana River

The Guadiana is one of the great rivers of the Iberian Peninsula, and for much of its course in Portugal it is also the border with Spain. Its name preserves its history: the Arabic wadi, meaning river, joined to Ana, the name by which the Romans knew it. It rises in the highlands of La Mancha in Spain, and after more than eight hundred kilometres it reaches the Atlantic between Vila Real de Santo António and the Spanish town of Ayamonte. For about a hundred and fifty kilometres in its lower reaches, and again for a stretch in its middle course, it separates the two countries, and the frontier town of Elvas stands close to it.

The river and its valley have always shaped events in this region. Elvas sits on high ground a few kilometres from the Guadiana, facing the Spanish fortress city of Badajoz on the opposite bank, and for centuries the two cities watched one another across the river and the plain. The great forts of Elvas were built to guard the main crossing routes, and the river itself was both a barrier and a route for armies, merchants, and smugglers. A ruined medieval bridge, the Ponte da Ajuda, once carried traffic across the Guadiana nearby, and its broken arches are a reminder of the frontier wars.

Moving downstream, the river changes character. In the Alentejo it has been dammed to form the huge Alqueva reservoir, one of the largest artificial lakes in Europe, which has transformed the landscape with water sports, boat trips, and a dark-sky reserve. Below the dam the river flows through a quieter valley, past the Pulo do Lobo, a waterfall where it squeezes through a narrow gorge, and on to Mértola, the old Roman and Islamic river port, which is the farthest point that ships could reach. Farther south the Guadiana passes Alcoutim and Sanlúcar de Guadiana, whose castles face each other, and reaches its broad estuary.

From Elvas the river can be seen from the walls and forts, where the view reaches across the plain toward the Spanish frontier. A visit to the river itself involves a short drive, and its banks offer calm, open scenery with birds, cork oaks, and farmland. The river is slow and wide, and the mood is peaceful.

The river suits travellers interested in landscape and history, birdwatchers, and those who enjoy quiet roads. Combine it with the fortifications of Elvas.