Alcácer do Sal is an historical town crowned by castles whose medieval cobbled streets, worn over time, cluster around the banks of the Sado River, in the district of the town of Setúbal. Wrought-iron balconies look out over the river and underneath them dwell a variety of cafés and restaurants. The Sado flows sleepily past, yet the mighty ramparts and towers remind us of times when this, like other hilltop towns in Portugal, played an important part in territorial battles.