Monuments

Castro Marim Castle was strategically built in the 13th century on a hill on the right bank of the River Guadiana. It bears witness to the region's rich military and cultural history.

The semi-circular outer wall enclosed the settlement and the so-called Old Castle, and it was here that the town initially developed.

Today there are only remains of the castle with four turrets, a gate, the ruins of the 14th-century Church of São Tiago (Saint James), the Palácio dos Alcaides (Governor’s Palace) and houses.