How long does it take to ride the bus from Pompei up to the summit of Mt. Vesuvius? RS's book says it's a 1-hour trip, is that round trip or 1 hour each way? If it's one hour each way plus a 30 minute hike to the summit, plus a few minutes to wander around and enjoy being there, plus the 30 minute bathroom stop RS claims are mad often on the way down, that = 3 1/2 to 4 hours to go from Pompei to the summit of Vesuvius and back. Is that right?
Also, I am checking train schedules online at raileurope.com, and I don't see any trains that leave eralier than 10:00 AM and arrive at 12:55 PM. Is there a better way to get to Pompei from Rome so that you can arrive earlier in the day?