The train is fine, but also the 607 Monaco and 15 cap ferrat bus with a physical card which can be shared with multiple people costs only €3 and each passenger is only 1,70 or if you have android you don’t need the card you exit at the Octroi stop just as you reach the village and it’s then a 10 minute walk to the darse port and beach journey time then from nice port is about 10 minutes
