We will be staying in Naples and would like to visit the ruins of Pompeii and Herculaneum. Is it possible, using only public transportation, to visit both sites in a single day? Or do the transport connections and the number of things to see at each site make it advisable to make two trips on separate days?
If a single day trip is possible, what transport connections are the most efficient? In particular, will we save any time by going to Pompeii first, or to Herculaneum? (I assume that in terms of price it is probably best to buy a "campania>artecard Tutta la regione", which will cover the cost of admission to both sites plus all public transportation costs.)