weir in the river beach of azenhas do guadiana and mountain, mértola - alentejo portugal

river lake wilderness landscape water mountain nature rock valley tree cliff geology stones herbs weir beach azenhas guadiana background mértola alentejo portugal beautiful mountain weir herbs stones recreation land wild plants shadow village countryside vacation season aquatic construction nobody mill park forest natural rock 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