The subject was covered somewhat in this: earthquake thread

Big lakes & oceans can be very inhospitable when the weather turns. I would consider bugging out in my boat but range & storage space is very limited. It would have to be modified to accomodate the requirements of bugging out. Inland, a canoe or rowboat (at sea also - I guess- the Atlantic was crossed by rowboat!) Would be a better option if speed is not of the essence. You can travel in very little water, range is unlimited as long as you can paddle (limited/useless if injured) . . .

Hmmm, a lot to think about !