We traveled up through Michigan to Houghton in the UP with our trailer the last two years. Very nice traveling! The bridge at Mackinac was neat (some say to watch the winds, but I didn't notice much). And both times we visited Mackinac Island. First time we walked it, Second time we brought our bikes. First time we stayed at Mackinac Mill Campground, pretty busy place, but nice, we had a view of the water from our site.
This past summer we stopped at http://munisingtouristpark.com/ to see the Pictured Rocks (glad I saw it from the water, now I'd like to hike the park! not enough time). Nice campground on the water.
Also found a nice little lunch spot in Munising -- http://www.johnny-dogs.com/
