kadaitcha
Well you are right in one sense, there will be no need for the huge
cruising liners that we see in Sydney every week.

http://www.theoildrum.com/node/6086#more

That link is about a 26 mile queue of idle ships.
I was suggesting wind jammers for urgent freight and those few
passengers who will need to travel.
However I do think bio fuels could possibly support enough ships to do
the necessary voyages. There will be no call for the amount of freight
movements and passenger travel that we now experience.
In the longer term the economy will be completely reorganised and
many things we take for granted now will either be done quite
differently or not done at all.