Marinid Walls

The Marinid Walls are the remains of fortifications built by the Moroccan Marinid dynasty in the 14th century, during their occupation of Algeciras. The walls are among the most significant surviving remnants of Moorish military architecture in southern Andalusia, and the archaeological park around them provides context for understanding Algeciras's medieval history as a repeatedly contested crossing point between Europe and Africa.

The site includes not just the walls themselves but the remains of towers, gates, and associated structures. Free to visit; an interpretive centre explains the Marinid period and the broader history of Islamic Algeciras. Located in the upper part of the old town, within walking distance of Plaza Alta.

things to do sight museum
A story
The Marinid dynasty — a Berber sultanate based in Morocco — built these walls during the 14th century when they controlled Algeciras as their main foothold in Iberia. The site is significant because Algeciras was completely abandoned and demolished by Castilian forces in 1369 to prevent it from being used as a Moorish bridgehead again, and the city that grew up afterwards was built on top of the ruins. These walls were only excavated and identified in the 20th century — they had been invisible under the modern city for 600 years.