Best tours to see in Pisa, Marseille, Barcelona, Sardina, Tunisia, Valleta Malta, Athens?
Also probably best answered on Cruise Critic. Have a great trip.
Perhaps you could share some of your interests when you are traveling. People can then share which sites in these cities they believe are a match for your interests.
Steves has a guidebook on cruise ports in that area. Probably check out from local library if you don't want to buy it. We have been on HA in that area several times so the excursions just depends on your interests. My best may not be your best. Which ship???
Not sure how anyone could answer without knowing anything about your interests, time of year of thecruise, how long you will be in port, etc etc etc. Check out the RS Mediterranean Cruise Ports guidebook. And as mentioned before, go to the Cruise Critic website. Check the forum for your cruise line, as well as the Ports of Call forums for each port. Also look at the Cruise Lines own website for your sailing. Your booking should include the ship excursions available. You could also look at the Whats in Port website, and TripAdvisor