Greetings--As always, thanks in advance for any advice you can offer. Taking my first Mediterranean cruise on Princess next year. Our ports of call include Marseille, Genoa, La Spezia, Rome, Naples, Santorini, Istanbul and Mykonos. Will definitely take an excursion in Rome and Istanbul but interested in knowing if any of the remaining ports are walkable from the ship to anything of interest.
Thanks,
js10