CASTLES PROVINCIA DE CÁDIZ

The Castillo de San Sebastián in Cádiz commands a strategic location on a small island at the end of La Caleta beach, with roots tracing to a 1457 chapel built by Venetian sailors. The fortress received its major defensive upgrade in 1706 during Spain-Portugal tensions, when a full castle was constructed to protect Cádiz's northern flank. A distinctive iron-structured lighthouse, erected in 1907 atop a Moorish watchtower and the second electric lighthouse in Spain, crowns the castle's ramparts. Accessible via the Paseo Fernando Quinones walkway, the castle offers panoramic bay views and has served as a cinematic backdrop for Hollywood productions and James Bond films.

Castillo de Santiago graces Sanlúcar de Barrameda in Cádiz with its distinctive late Gothic architecture, constructed between 1477 and 1478 by the House of Medina Sidonia. The quadrangular fortress combines rammed earth, masonry, and stonework, organized around a central courtyard of arms with towers at strategic points. A barbican and the northeast ensemble of great hall and homage tower—modeled after the famous tower of Guzmán del Bueno—define its character. Declared a historic-artistic monument in 1972, today it serves as a museum and event venue, displaying costumes, weapons, and views across the surrounding region.

Olvera Castle crowns a rocky cliff at 623 metres elevation, commanding the centre of the town in Cádiz province. Built in the late 12th century as part of Granada's defensive system, it features an irregular triangular plan that conforms to its rocky base, with a single entrance protected by a barbican and a prominent keep on the south side. Seized by Castilian forces in 1327 and subsequently reinforced, the castle once functioned as a signal station in a strategic chain of fortresses that marked the border between Islamic and Christian Spain, offering commanding views across the frontier zone.

Castillo de Sancti-Petri stands on the small island of Sancti Petri in Cádiz province, an offshore fortress with ancient roots dating to Phoenician settlement in the 1st century, when a temple to Melqart stood here. The current castle was constructed in 1610 as part of King Philip II's coastal defence system, with its oldest component being the watchtower, while the walls and interior date from the 18th century. The site maintains profound historical significance, legendarily linked to the Temple of Hercules-Melqart and the mythical founding of Cádiz, and the castle tower has been substantially rebuilt and now functions as a lighthouse.

The Baluarte de la Candelaria is a 17th-century fortification built in 1672 on the northern coast of Cádiz, Spain, strategically positioned to guard the entrance to Cádiz Bay. Constructed with an irregular triangular plan, this bastion features angled defensive facades facing the bay and remains open toward the city. Once essential for protecting the lucrative colonial trade routes and guarding against pirates and enemy fleets, the structure is now recognized as part of Cádiz's UNESCO World Heritage historic center. Today it serves as a cultural venue hosting exhibitions, concerts, workshops, and artistic events, occasionally open to the public for special programs.

Castillo de Melgarejo is a Late Medieval fortress located in Jerez de la Frontera, Cádiz, near the Jerez racing circuit, whose ownership by the Melgarejo family began in 1606. Archaeological investigations have uncovered settlements dating to the Copper Age and Early Bronze Age at the site, indicating long historical occupation. The castle's distinctive architecture features a square tower that transforms into an octagon at its upper section, crowned with crenellations and traces of original machicolations at each corner and on all four walls. A crenellated wall with a pointed archway bearing the Melgarejo family coat of arms marks the main entrance. Protected as a cultural asset since 1985, the castle today stands in consolidated ruin and is open to the public, offering insights into medieval Andalusian military architecture.