Hi Bob,
Here are our suggestions:
Door County Wisconsin
Take Hwy 42/57 to Sturgeon Bay. Sturgeon Bay is a nice city that is on a larger canal. There are a number of marina's there, nice little restaurants, shipping building facility, etc.
Keep going north on Hwy 42/57, then take Hwy 57 east toward Lake Michigan. You can then follow this road in a loop around Door County (up Lake Michigan and down Bay of Green Bay) - you'll go thru Jacksonport, Baileys Harbor, Sister Bay, Ephram, Fish Creek, and Egg Harbor. When you are in Sister Bay you can continue North and head up toward Washington Island (if you like smoked fish, stop in Ellison Bay for some smoked white fish). We are not big fans of Washington Island (not much to do) but many people love it. A car ferry runs over to Washington Island and then on the other side of Washington Island you can take a passenger ferry to Rock Island.
Sister Bay, Ephram, and Fish Creek are our favorites. Many stops along the loop to stop at roadside markets, shops, etc. Just above White Fish Dunes State park there is a county park named Cave Point County Park. This park is right on Lake Michigan and is a great place to stop to see the lake and some of the rocks, cliffs, etc. If you like pies, then you must stop in at Sweetie Pies in between Sister Bay and Ephram - by far the best pies I've ever had.
http://www.doorcountypies.com/
If you need a place to stay, PM me as our Cottage is located on the water (bay side) near Dykesville. We are not in the area, but I'll set you up with the key and directions. Just a small cottage built in 1923 with a cooper roof.
http://www.c-brats.com/modules.php?set_ ... _album.php
Of course, if you are a football fan at all (and even if you are not) - Lambeau Field and the Packer Hall of Fame is a nice place to visit in Green Bay. You'll be amazed that a small little town like Green Bay can support a major football team - but we put our kids on the season ticket waiting list when they were born (oldest now 20) and they still are around 50,000 on the list (started out around 55,000).
In the UP of Michigan:
Fayette Michigan is a fun place to see. We have been to this harbor many times in our boat.
http://www.fayettemichigan.com/
Of course, Mackinac Island is fun to visit. Harbor Springs, Beaver Island, and Charlevoix are worth the visit.
http://www.mikebartonphoto.com/gallery/ ... harlevoix/
We are on the motorhome heading for Quebec / New York City but our boat is in Sturgeon Bay. (You'd be welcome to take our boat out for a ride also - in a slip on the canal)
Certainly let us know if you have any questions or need information on your trip.
Have a nice trip,
Robert