The castle of Santa Catarina was built between 1581 and 1640 when Portugal was under the control of Spain to prevent the incursion of pirates into the area of the Arad River. The architect responsible for the design and construction of this castle is Alexandre Massai, who chose the site for its wonderful views of the mouth of the river and the presence of drinking water; When you are in Portimão, do not miss visiting it to learn about its history and its most important events.