jeropic Spain - Salamanca (excursion from Douro cruise) 

Douro river cruise, Portugal - full day in Barca d'Alva with excursion to historic Salamanca, Spain.
With a history dating back to the Celtic era, Salamanca known for its ornate sandstone architecture and for the Universidad de Salamanca. Founded in the 1100s and a key intellectual center in the 15th-16th centuries, the university continues to add to the city’s vibrancy with its international student population.
Late afternoon downstream to Pocinho.