In Castro Marim it is of obligatory visit its castle, that was raised in the century XIII and from which enjoy splendid views the environs. But, after contemplating the landscape, it is hour to return to asphalt from IN 122. We go way of Vila Real de Santo António and during little the six kilometers that we cross we crossed the Natural Reserve of the Sapal de Castro Marim and Vila Real de Santo António.
Next to the highway we contemplated a vast humedal that spills its waters to the estuary of the Guadiana. Marshes, lagoons, salt mines and grass follow one another next to the highway in an incomparable spectacle. When arriving at Vila Real, we stopped the car and we give a return by the city. They say the chronicles that the population was founded at the end of century XVIII by Marquess de Pombal and, for that reason, his city-planning outline responds to criteria of symmetry and functionality.