On Mon, 9 Apr 2007 19:44:28 -0400, "Roger Long"
wrote:

If anyone has actually been to Canada in an undocumented boat with US state
registration, would you please let me know.


I have but it was quite awhile ago.

Try calling 1-800-CAN-PASS

I believe that is still the check in number when going to Canada.
You're more likely to have trouble coming back into the US.