Yup. About 20 miles.

That's not a trip you'll want to make if the wind decides to get up at some point, either. The rollers on the north end get BIG with a north or south wind.

Most 2 stroke outboards get around 5 mpg on a good day, so you'll burn $40+ in fuel for a round trip. It would be safer, cheaper and possibly faster to just trailer over that way.