Travel Review: Portugal Trip, Lisbon, Porto, Nazare, Douro Valley, Palacio Nacional da Pena, Fado Dinner, 10-Day Tour

In Palacio de Pena there was a long queue to enter, but as it turned out it was only for the palace interior - all the galleries are freely accessible. We were limited for time, and should have gone straight to the galleries. Also, for that tour it would make sense to go to the palace first, and then use the remaining time to see the gardens/have lunch.
Another regret is not going to Paiva walks, but they were not accessible because of forest fires (opened back the next day, but we already had other tours scheduled).