Heading to Portugal? Don’t forget to read the wine-tasting itinerary and Duoro Valley wine tour guide for the most popular spots! With these wine tours in the Douro Valley, you can experience the splendid winemaking tradition of the Douro with your guide. The Douro Valley is a world-famous region for port wine production. These wine tours in Portugal offer a full-day tour where you can experience some of the authentic samples of the region’s award-winning local wines, a boat cruise down the Douro River, and a traditional lunch in a scenic village.