How cool is this? You can drive US Hwy 10 from east to west across Michigan until you get to Ludington. Then you can drive your vehicle (car, van, semi-truck!, motorhome!) onto the SS Badger Ferry and continue west across the lake until you get to Manitowoc, Wisconsin. Then you drive off and continue on US Hwy 10. The route is designated as part of US Hwy 10.
Crossing time is 4 hours. Fare for a motorhome is $5.95/ft one way, plus the fare for passengers, $59 each adult. That would be $356 for us. The ferry has been operating since 1952. It operates from May to October.
We did not take the trip this time, but only watched as the ferry came into port and the vehicles and people disembarked. This would be a great shortcut if we were in a rush to get to Wisconsin.