We arrive in late September in Lisbon early morning and leave 12 days later at 1pm -- We have already been to Lisbon [and enjoyed it greatly] but it it worth a second 2 day trip or should we leave and journey around = Is there a train we can catch to a different city and use that as a base and then maybe use the last 1-2 days to enjoy Lisbon before flying out? I've done similar things [flying into Paris or Rome and then training elsewhere - and relaxing] - any suggestions? And then, where in the south should we go? We've seen Porto, Coimbra, Nazare, and generally enjoy historical/cultural/archaelogical types of things - not sure where else to visit....