First of all, in response to jam bo, the answer is ‘no’. I am not thinking of an exquisite once-in-a-lifetime trans-Atlantic cruise.
I am thinking of a no-frills, relatively fast ferry that could get someone from Southampton (or wherever) to Montreal (or wherever) in a matter of a few days.
I know that time is an issue, but for the three-week holidaymaker, a few days at each end would not be a huge deal, especially when you consider that factors like jet-lag and the illnesses that some people get from recycled plane air can affect a few days of holiday anyway.
Clearly, it’s not something one could use for a one-week business trip.