Preview Mertola on the banks of Rio Guadiana in the Alentejo. Europe, Southern Europe, Portugal, March Image ID: 746-88188 Artist: Cubo Images/robertharding Purchase a commercial license Buy framed prints & more from our print store alentejo attraction baixo alentejo colorfull europe flower harbour town iberian peninsula idyllic lane medieval mertola middle ages moorish narrow old town portugal rio guadiana romantic southern europe spring town urban vertical western europe white