Train timetables change the second Saturdays of December and June. Until the new timetables are released, depending upon where you are searching for tickets, you may get messages that the trains are full, that there are no trains, or (accurately)... (More)

We took a tour from Rome to Pompeii and stopped in Naples to look at the view.  Its a long day, but worth it.  I looked the train as well, but it didn't see to work out timewise.