Hi, all-
We are flying into Porto in a few weeks and spending 10 days traveling around, eventually ending up in Lisbon for our departure. We would prefer not to rent a car. Which beaches are the nicest (which to me means not terribly build up or touristy, and good for walking) that are accessible by some form of public transportation? We don't have a definite itinerary yet, other than spending our first 4 nights in Porto, so are fairly flexible. Any ideas appreciated!