unesco world heritage, a cruise in douro river, vineyards valley in sao joao da pesqueira.

agriculture attraction autumn boat countryside cruise douro europe farm farmhouse field fruit green heritage hill joao landmark morning mountain natural nature oporto outside pesqueira picturesque plantation portugal portuguese production province region river rural sao scenic ship terrace tourism touristic traditional transportation travel unesco valley village vine vineyard vineyards viniculture viseu viticulture water wine winery world