I am helping my parents (in their mid 60s) plan their Portugal/Spain trip. They will be in Lisbon, then on to Madrid, Sevilla, Granada, and then end their trip in Barcelona. They have an extra 4 days in between Granada and Barcelona and instead of tacking on more days in those cities (already have 5 days in Granada and 11 in Barcelona) I am suggesting to go to another city. Does anyone have any suggestion for cities that won't take them too far out of the way? They will be taking the train.
Thanks for any advice!