Re: pontoon to Mackinac Island?
Can't remember the companies name but a toon company ran one from Chicago to Macinac to show how good thier boats are, I would assume they had a chase boat just in case.
I suppose it could be done but it depends where you are starting from but I could see it getting pretty scary, been up there a few times,not in a boat, and it seemes like the water always had a pretty good chop to it.
As everyone else pointed out, you probably could do it but really don't want to.