Andrea, my mom and mother in law are going to be on part of your trip as they will be boarding in Savona....they just don't realize it yet as this is to be their Christmas gift! I assume that you'll be departing the ship in Barcelona as well?
I'm trying to organize a private excursion for them to tour the Provence countryside during the port stop in Marseille. There are companies that offer trips to Arles, Les Baux, and Pont du Gard. If that's something that might interest you I can provide more information and shoot you the website that I was looking at.
And I apologize for my low number of posts on this site....I'm very active (and similarly named) on a similar type site so you can rest assured I'm not a hacker or anything.