In summer, the easiest is the Marozzi bus as it goes all the way from Rome to Positano without any changes. It takes a bit longer than the train and only runs twice a day, but you don't have to schlep luggage on and off different transport.

The fast train from Rome to Naples only takes 70 minutes now. I would not switch to a ferry as ferries don't run that often. Train to Sorrento from Naples and the bus to Positano.

That's great info thanks very much!!!! How long is the bus from rome to positano?

And the cost if you remember? Thx!

We were a party of 4 going from the Rome airport to Positano. Planned on taking the train but there was a strong chance for a strike on our arrival day and I ended up booking Francesco http://www.francescomarrapese.com/ for a transfer to Positano. For the convenience it was worth the few extra dollars. Used him two more times during our stay. An absolute delight! If you're still considering a car service I can highly recommend him. And yes...it was about 3 hrs.

Hi Deetes - Rome-Positano by Marozzi bus takes about 4.5 hrs
dep. 07.00 Rome Tiburtina
arr. 11.30 Positano

Fares are:

€21.00 single

€36.50 return

For details see:
http://www.marozzivt.it

Hope this helps ...

Steve

FYI - If you enter Roma/Positano for schedules on Marozzi, you will only see the 7 am departure. There is an afternoon departure that is Roma/Sorrento at 3pm. You would switch to the local Sita bus in Sorrento to go onto Positano.
http://www.marozzivt.it/script/bigli...pobigl=marozzi