river cruising villages and vintages: cruising the douro river valley 8 days | 2026-2027 porto, pinhão, guimarães, peso da régua, côa valley an 8-day riverboat cruise on portugal's douro river! beginning and ending in porto, our cruise-only 8-day portugal riverboat adventure offers an authentic taste of daily life in the douro river valley… a unesco world heritage site steeped in a legacy of wine making for 2,000+ years! expand from $5,790 ? from price, per person price shown is the lowest price per person, double, on most journeys. view tour compare