The Alcazaba is the oldest surviving part of the Alhambra complex, and the part most visitors rush past to reach the Nasrid Palaces. That's a mistake. Built after 1238 by Muhammad I Ibn al-Ahmar, founder of Granada's Nasrid dynasty, it was raised on the site of an earlier Zirid fortress from the 11th century, the citadel Granada's Jewish vizier Samuel HaNagid once governed from. The rammed-earth walls, reinforced with lime concrete, have lasted seven centuries.
When to Visit
Best season
April to May and September to October for mild weather; January for the flag-raising ceremony
Quietest hours
8:30 to 10:30 or after 17:00
Visit duration
1 to 2 hours standalone; 3 to 4 hours combined with Nasrid Palaces and Generalife
Inside the fortress walls
Walk the perimeter rampart and you feel the weight of the place: narrow stairways, thick walls, the wind coming off the Sierra Nevada. For the fuller construction sequence, from a 9th-century refuge fort through Zirid, Nasrid, and Castilian rebuilding, see Alcazaba Granada: a fortress history older than the Alhambra.
Inside the walls, the Barrio Castrense (Military Quarter) preserves the foundations of ten to seventeen houses where elite guards lived with their families. Excavations have uncovered a hammam, a cistern, and a communal kitchen. The layout is domestic in scale, which makes it strange and interesting: this was a working neighbourhood inside a fortress, not just a parade ground.
The Jardin de los Adarves, a long garden on the southern rampart added in the 17th century, is one of the quieter spots in the entire Alhambra.
Climb Torre de la Vela before your Nasrid Palaces slot
The Torre de la Vela gives the cleanest elevated view of the Albaicin hillside and the Sierra Nevada. Arrive at the Alcazaba first, before your timed Nasrid Palaces entry, and climb the tower while the fortress is still quiet.
The watchtowers
The two main towers reward the climb. The Torre del Homenaje, at 26 metres, was the military keep and command post. The Torre de la Vela, the taller of the two, has four vaulted levels and a rooftop terrace with an unobstructed view across Granada's old city, the Albaicin hillside, and the snow-capped peaks of the Sierra Nevada. On clear winter mornings the mountains look close enough to touch.
Each 2 January, four flags go up from this tower to mark the day the Catholic Monarchs took the city in 1492, a ceremony that draws Granadinos rather than tourists. The Alcazaba itself survived the Peninsular War intact: in 1812 the withdrawing French garrison instead blew up towers elsewhere on the Alhambra's walls, leaving the Torre de Siete Suelos and the Torre del Agua in ruins, a story told in the Napoleonic plot against the Alhambra.