Serpa Castle & Aqueduct

Serpa's hilltop castle overlooks a whitewashed border town in the Baixo Alentejo, its ramparts giving open views across the Guadiana valley toward Spain. A visit typically starts with a walk up through the town to the castle, where visitors can walk sections of the walls and see the 'brecha,' a dramatic gap torn in the fortifications during an 18th-century Spanish siege and deliberately left unrepaired as a historical marker. Below the castle, a Roman-origin aqueduct still functions in part, its arches carrying water into the town, and a restored wooden noria wheel demonstrates the traditional method once used to lift water from the town's wells. Serpa is also one of the Alentejo's most celebrated centers for cheese-making, and many visitors combine the castle and aqueduct with a stop at one of the town's cheese shops to sample the distinctive semi-hard sheep's cheese produced locally. A relaxed visit covering the castle, aqueduct and a cheese shop or two takes about an hour to ninety minutes. Late afternoon suits the visit particularly well, both for softer light on the castle walls and because the town's cheese shops and cafés are open and lively before closing in the early evening. The climb to the castle involves some steep, cobbled streets, so comfortable shoes are advisable, and the exposed ramparts can be hot in direct summer sun.