M..
There is a rental next to our cottage on Cloverleaf Lakes, Clintonville, WI. It's a very nice place. It's like a regular house! I'm not sure what is available for next summer, but it might worth the look.
Good Luck and Happy Vacation!!
Also... Door County in WI has a lot of small resorts with individual resorts. One that comes to mind is Alpine Resort near Egg Harbor. It's right on the Bay. Lots of places to go and do in Door County.