Teeming River Cruises invites you to begin your Douro Valley Tour on the slopes above the Douro River estuary – Porto. Known as a historic mercantile city with a rich and varied heritage and an Old-World atmosphere, lined with its medieval walls, gleaming Baroque churches and famous Port wine cellars, it is an arresting destination of choice for the adventurous traveler. Traveling the Douro, the MS Infante d. Henrique finds itself positioned on the Portuguese border allowing guests to take in the quiet streets and lush landscapes remaining beautifully unspoiled. This adventure gives travelers an authentic taste of western Spanish life, as they wind along terraced hillsides that produce some of the world’s best port wine!