Riviera River Cruises - Commencing in the Roman city of Porto, the home of Port wine, Portugal's once wild river Douro has been tamed by locks into resembling a series of finger
Porto, the Douro valley (Portugal) and Salamanca (Spain) (port-to-port cruise) | CroisiEurope Cruises
![Porto, the Douro valley (Portugal) and Salamanca (Spain) (port-to-port cruise) (12 destinations) by CroisiEurope River Cruises with 8 Tour Reviews - TourRadar Porto, the Douro valley (Portugal) and Salamanca (Spain) (port-to-port cruise) (12 destinations) by CroisiEurope River Cruises with 8 Tour Reviews - TourRadar](https://cdn.tourradar.com/s3/tour/1500x800/79690_10351717.jpg)
Porto, the Douro valley (Portugal) and Salamanca (Spain) (port-to-port cruise) (12 destinations) by CroisiEurope River Cruises with 8 Tour Reviews - TourRadar
![Porto, the Douro valley (Portugal) and Salamanca (Spain) (port-to-port cruise) (11 destinations) by CroisiEurope River Cruises with 8 Tour Reviews - TourRadar Porto, the Douro valley (Portugal) and Salamanca (Spain) (port-to-port cruise) (11 destinations) by CroisiEurope River Cruises with 8 Tour Reviews - TourRadar](https://cdn.tourradar.com/s3/tour/1500x800/130122_3a1934f2.jpg)