My wife and I are walking a portion of the Camino Frances 9/5 - 9/15. Planning to head to Porto afterward for 3-4 days (enough/too much?). We have been to Lisbon and Sintra. Where should we spend another 7-10 days? Douro Valley, other Portugal towns, Vineyards in Spain? Southern Spanish towns?
Any ideas welcome. We are 67/61, relatively fit, simple travelers, but like a little structure to our trips/stays. Thx.