Strategically located on a hill over the village, the castle has a privileged location, overlooking the surrounding landscape and the village. It presents an irregular trapezoidal plan, integrating elements that constitute an innovation in terms of medieval military architecture. Inside are the ruins of the alcazaba, and it is surrounded by a barbican.
Tel.: +351 269 826 696 (Posto de Turismo de Santiago do Cacém), +351 266 769 450 (DRC Alentejo)