We had to cancel our fall trip this year to celebrate our 35th anniversary and I'm reimagining the itinerary for a trip in 2021. We've never been to Portugal and it has long been on our list. We will be finishing up a long trip through Germany, Switzerland and France in Paris. There's a potential opportunity to stay at place in Cascais. Would it be a good place to explore Lisbon and the surrounding area? We would have a week there. Could it be done by public transportation or would a car be advisable? I don't mind driving. I'm considering flying from Paris to Porto, then after a few days there going to Lisbon/Cascais. We would fly home from there. This would occur in mid to late October.
I appreciate any advice. I've done a lot of research about the places we were supposed to travel to, but haven't done much research for Portugal yet.