When booking the private transfer with Rome Cabs, how do you know what time to tell them to pick you up at the port? E.g. ship arrives 6am (scheduled). I don't know if we'll be able to get off by 7, or 8, or 9am.... never taken an EU cruise; all our US cruises they have "group number" and they announce when each group is allowed to disembark, etc. So I really don't have much control (other than saying I'll carry my own luggage off to get in the first group).. but we still have to clear customs, etc.