considering very last minute Lisbon trip...would like to do a day trip or one night elsewhere. Porto or Sintra? enough time to spend a night in porto? better to do daytrip to Sintra?
we are reasonably fit -- enjoy a mix of culture, scenery and museums (historical/art or both)
perfectly fine with 2-3 sites (or even less a day), know full well we can't see everything
buying ricks book today. thanks