Portugal Itinerary 3 days: Lisbon, Sintra. 6 days, add: Algarve (Salema, Lagos, Cape Sagres) 8 days, add: Coimbra, slow down. 10 days, add: Nazaré and nearby sights (Óbidos, Alcobaça, Batalha, Fátima) 12 days, add: Porto. 14 days, add: Évora, Douro Valley. More time, add: Tavira, slow down.