Since I received no prior response to the post, and cruise date is nearing, I booked private excursions for 2 people. I don't know if all can be changed at this point, but the sites are as follows:
Full day Athens: www.athenstaxi.net
Tour can accomodate 4 people.
Full day Rome: Tour R01
. Can increase to 8 passengers for additional fee - pickup from port of Civa....
Full day French Riviera: www.loisirs-services.com
Visit Nice, St. Paul - Eze, Monaco
Can increase to 8 passengers for additional fee - pickup from port of Villefranche.
If interested, please advise. I can contact providers to see what can be done.