We will be arriving by ship in Cannes on Tuesday, August 12 and were planning on hiring a driver to take us to Monte Carlo and possibly St. Paul de Vence or Cagnes-Sur-Mer. However, friends of ours who spent some time in the area said not to try to travel by car during that time as the traffic was so bad, we could spend most of the day sitting in traffic. They said we would be much better off taking the train to Monte Carlo. I'm not sure how easy it would be to stop at some other towns if we go by train. What do you think is better - train or car? There are 4 of us, so budget is also a consideration.