I have been to Northern Italy including Milan,Bergamo,Florence,Naples,Rome,
Tusany and Amalfi.

I am looking for suggestions to go off the beaten tourist path.

We will be in Amalfi, then end of May and will have four days to travel afterwards. I would like to go to the coast someplace other than amalfi, within a 4-5 hour ride of Rome.

Any hidden gems, on the east or west coasts?

Thanks