Excavations revealed that the site was inhabited long before the Moorish fortification, with findings dating to the 9th century BC.
The castle features two distinct water cisterns, which were vital for surviving long sieges in the dry climate.
It was conquered by Paio Peres Correia during the reign of King Afonso III of Portugal.
The location was chosen specifically for its high elevation, providing a clear line of sight to the Atlantic coast and inland valleys.
Fragments of Islamic-era pottery discovered here are displayed in the Municipal Museum of Aljezur.
The castle is the northernmost fortification of the Silves administrative district during the Islamic period.
The Castle of Aljezur is a 10th-century Moorish fortress positioned on a hilltop overlooking the town of Aljezur and the Ribeira de Aljezur valley. It served as a strategic defensive stronghold during the period of Islamic rule in the Algarve before being conquered by Christian forces in 1246. The site features the remains of original defensive walls and the outlines of two cisterns built for water storage. Archaeological excavations conducted at the site have uncovered ceramics and artifacts dating back to the Bronze Age and the Iron Age. Its current structure consists of partially reconstructed stone ramparts that offer panoramic views of the Monchique mountains and the surrounding coastal landscape. The castle is integrated into the Rota Vicentina hiking trail network. It stands as one of the few remaining examples of Almohad-era military architecture in the region. There is no roofed structure remaining, leaving the entire site exposed to the elements.
The highest point of the northern wall, providing a wide-angle view of the town rooftops and the winding river below.
Wear sturdy, closed-toe footwear as the paths are uneven, rocky, and often unpaved.
Bring sun protection and water, as there is no shade available within the castle walls.
The climb to the castle is steep; consider this if you have mobility limitations.
Attempting the walk during peak summer midday hours without water, as the incline is demanding.
Respect the archaeological site by not climbing on, sitting on, or removing stones from the defensive walls.