I'll be on the Norwegian Epic and stopping at port of Cannes on Friday June 9. I am thinking of doing the tour called "Monaco on your own" which provides a private bus to and from a location in Monaco for $109. I also have a $50 credit on excursions per port so it would actually only cost me $60.
The ship is expected to dock at 8AM, the tour/bus ride begins at 9AM, should arrive at Monaco shortly after 10AM, and would have to meet a little before 3PM to get back to the ship by 4PM. That would give me 5 hours of free time. If I choose this tour, would it be possible to take a train to Nice, walk around for a bit, +/- check out Eze, and return to Monaco for the bus ride back to Cannes?
What are the best things to see in Monaco, Cannes, and Nice? I most appreciate seeing the beaches, quaint markets, old architecture, etc. not the high end fashion stores and celebrity hangouts.