portugal, spain & the douro river valley (2026) porto to lisbon | 11 days following the douro river through portugal and into spain, you鈥檒l cruise past steeply terraced hillsides, quaint villages and acres of ripe vineyards. enjoy private tastings of port and explore ... ship: s.s. s茫o gabriel countries: portugal, spain river: douro 4.4/5 (578 reviews) from $4,499 per person view itinerary dates & pricing