OK, I'm sorry to need such detailed information. My husband has already rented a car from Rome to Salerno to Naples and then back to Rome.
We are moving hotels frequently because my husband works in the hotel business so he can get good rates, but we have to move. My girls are used to this. Not the BEST (so much easier to stay in one place...but so much more cost effective to move).
So we are driving to Salerno from Rome. Staying there two nights and then driving to Naples from Salerno, staying only one night and then driving back to Rome. Leaving Rome early the next morning on a flight to Barcelona.
I'm looking into trains instead, but there are 6 of us. First question - does my 11 year old travel free (US citizen). I don't see at rain into Salerno, so... How do we get there. And then if we want to explore Positano, Pompeii, Sorrento, how do we get there? Is parking a problem in those smaller coastal towns?
My research says that it is $22 one way from Rome to Naples, but still not sure how we would make all of the other stops possible.