We arrive at Nice airport at 10.05 on the 31st August. I do know that there are bus or train links to Saint Raphael and then onward bus to Port Grimaud. Can you buy a ticket on the train and how regularly do the services run? Is it best to get the bus to Nice Ville or is Saint Augustine OK? I don't really want to buy a ticket in advance because of possible transpor delays and I believe that there is no refund or exchange on the train.