This itinerary will assume you've rented a car and are taking a road trip through Portugal, but it's doable via other transportation methods.
- Day 1: The Duoro Valley.
- Day 2: Duoro Valley.
- Day 3: Douro to Porto.
- Day 4: Porto.
- Day 5: Porto to Lagos.
- Day 6: Lagos to Lisbon.
- Day 7: Lisbon.
- Day 8: Sintra.