The Dells are an hour north of Madison, and are one of the most popular destinations in the midwest, famous for the steep and scenic bluffs along the rivers that make great cruising, and also famous for the many theme parks.
An airport is in Madison, to the south.
Amtrak's "Empire Builder" route between Chicago/Milwaukee and the Pacific Northwest passes through the Dells.
Interstate 90/94 passes right through the Dells area.
Go to  for more info on all of these cruises
Be sure to stop in and have a swig at Nig's.