Old Castle of Alcoutim

The Old Castle of Alcoutim (Castelo Velho de Alcoutim) is the remains of a medieval fortress on Santa Bárbara hill, about a kilometre north of the town of Alcoutim in Portugal's Algarve. It counts among the more important Islamic military structures in the region and suits visitors who enjoy archaeology and the history of al-Andalus.

Where is the Old Castle of Alcoutim?

The site lies in the municipality of Alcoutim, Faro District, in the eastern Algarve close to the Spanish border. Its coordinates are roughly 37.481 N, 7.472 W. The fortress stands on a hill above the Guadiana valley, so the old walls command views over the river and surrounding countryside. The town of Alcoutim sits lower down on the riverbank, while the old castle rises to its north.

What is the history of the site?

People occupied the hill as far back as the Bronze Age, and later inhabitants built a fortified settlement on top of an older castro, a prehistoric hillfort. The castle itself dates from the 8th to 9th centuries, when Muslim rule extended across the Iberian Peninsula. Archaeological work led by Professor Helena Catarino revealed several phases of occupation, mainly from the 8th/9th centuries to the 12th/13th centuries. Earlier layers from late antiquity and the Visigothic period may also exist.

The castle served as a watchpoint. From the hilltop, its garrison controlled merchant traffic on the Guadiana, an important waterway linking the interior with the coast, as well as mining activity in the area. After the Christian reconquest of the Algarve, the new authorities chose a site right on the river. There they built a new castle and grew a settlement that became present-day Alcoutim. The old hilltop fortress lost its role, and archaeologists only explored it properly in the 20th century.

Why visit?

This is a place for people who like ruins with a thousand years of history rather than polished attractions with crowds. The site shows what life on the Algarve frontier looked like in the Islamic period: on a hill, overlooking a river and a trade route. Since 2016 the castle has belonged to the Umayyad Route, an international trail presenting the legacy of the Umayyad dynasty (711 to 1031) across seven Mediterranean countries. That places Alcoutim on a cultural map alongside far larger centres.

Combine the visit with the newer castle in the town itself and with the Alcoutim Municipal Museum, which presents local heritage, including archaeological themes. Two castles in one small town let you see two eras side by side: an Islamic hilltop fortress and a later Christian fortification by the river.

Frequently asked questions

Is the Old Castle the same as the castle in town? No. They are two separate structures. The old castle stands on a hill about a kilometre north of the town, while the newer castle is in Alcoutim itself.

When was the fortress built? It dates from the 8th to 9th centuries, although the site was inhabited as early as the Bronze Age.

What was the castle used for? It controlled merchant traffic on the Guadiana and mining activity in the surrounding area.

Is it part of a tourist route? Yes, since 2016 it has been part of the Umayyad Route.

Who studied the site? Archaeologist Helena Catarino led excavations that documented the successive phases of occupation.

How do I get there? The simplest way is from the centre of Alcoutim, heading north. Check current access hours with the local tourist office or the municipal museum before you go.