old stone watermill on the river beach of azenhas do guadiana, mértola - alentejo portugal

river water rock cliff waterway landscape mountain reflection nature vacation transparent old stone watermill beach azenhas guadiana mértola alentejo portugal weir recreation wild shadow flora village countryside vacation season calm aquatic construction nobody mill park forest natural stone environment outdoor tourism travel nature summer scenic landscape green leisure trees old mountains hill valley azenhas water vegetation beja guadiana beach fluvial river alentejo mertola portuguese portugal europe watermill transparent beautiful mountain