Is the circumvesuvia rail on the amalfi coast easy to navigate?

any advice ?Is the circumvesuvia rail on the amalfi coast easy to navigate?
Yes, it's very easy. There are only a couple of lines, so it's hard to go wrong. Most of the things you're likely to want to see are on the line between Naples and Sorrento. Pompeii is the Pompei - Scavi stop. Herculaneum is the Ercolano - Scavi stop. It's also inexpensive. There's a trip planner here: http://www.vesuviana.it/web/en/Orari



Note that the Circumvesuviana doesn't cover the whole Amalfi Coast though; the end of the line is at Sorrento. Beyond that, you'd need to take the bus from the train station in Sorrento or a boat from the marina (walking distance).