CASTLES TORTOSA

Castell de la Suda, also known as Castle Sant Joan, rises majestically above Tortosa overlooking the Ebro River, its 10th-century foundations built during the Caliphate of Abderraman III atop an ancient Roman acropolis. The fortress's name derives from the Arabic word sudda, meaning fortress or citadel, reflecting centuries of military importance. Under Islamic rule, the castle served as a powerful defensive stronghold and refuge for deposed rulers, including Caliph Hisham III in the 11th century. The turning point came in 1149 during the Reconquista, when forces from the Counts of Barcelona and Urgell captured the city. Today, the Parador de Tortosa uniquely operates within the historic fortress, seamlessly blending centuries of architectural heritage with contemporary hospitality and scenic views of Tarragona's landscape.

The Avançades de Sant Joan represent sophisticated 17th and 18th-century military fortifications extending from the Sant Joan Castle of Tortosa, designed by Italian engineer Luis de Gandolfo in 1642 and constructed according to the advanced defensive principles of French engineer Sébastien Vauban. These advanced compounds feature multiple bastions flanked by barbicans, including a distinctive second compound and a third structure with a central drill ground whose barbicans visually dominate the surrounding ravines. Currently in excellent condition and signposted for visitors, the fortifications are accessible from the Suda's drill ground via stone steps with integrated lighting. A recent museification project has enhanced the site's educational value, allowing visitors to appreciate the sophisticated geometric design and strategic positioning that characterized European military architecture during the early modern period.

Fortí del Bonet comprises a significant defensive structure built in the early eighteenth century as part of Tortosa's broader fortification system. Located at El Rastre, this bastion-style fort features a single main structure surrounded by a narrow moat, with the exterior bastion preserving original loopholes and gun ports for cannons at ground level. The fortress connects to a wider network of seventeenth and eighteenth-century city fortifications and stands as a protected Cultural Heritage Site of National Interest. Recent municipal restoration efforts have rehabilitated the fort, which had remained unused for over a century, returning it to Tortosa's patrimonial and touristic heritage circuit.

Torre de Fullola is a striking thirteenth-century cylindrical watchtower rising approximately 16 meters in a valley center between the sierra of las Molas and the Mola pass, roughly 12 kilometers northeast of Tortosa in Baix Ebre. Constructed with unworked stone arranged in careful courses, the tower features a 4.5-meter diameter with walls one meter thick and an elevated doorway five meters above ground fitted with a monolithic lintel and three south-facing loopholes for surveillance and defense. The tower anchored a medieval settlement established by royal charter in 1208 when Ramon de Montcada granted settlement rights to Pere Nebot for the castle and territory of la Fullola. By 1342, the thriving settlement had acquired its own coat of arms through Tortosa's ownership, demonstrating the town's importance in regional commerce. Today, the ruins of this medieval settlement include the remarkable tower, a nearby church, and vegetation-covered residential foundations, offering compelling evidence of Tartagon medieval frontier life and territorial administration.

Fuerte de Tenases is the northernmost defensive element of Tortosa's medieval walled city, constructed in two phases during the late 17th century and early 18th century following the Bourbon conquest. The fortress comprises two distinct enclosures: the first containing gunpowder storage and a cistern with eighteen cannon ports, and the second featuring a central plaza de armas with sophisticated northern defenses including two semibaluartes and a moat system. Located on an elevated hill overlooking the Remolins quarter and historic Jewish quarter, the site offers commanding panoramic views documented by 16th-century Flemish painter Anton van den Wyngaerde.