I didn't realize you don't do the Cruise.....the dates are sunday August 22nd....we would leave Auburn Hills and head up to Mackinaw....have no figured out how many days we should plan on or where to stay yet....just get some responses about it so I like your idea of just winging it and doing what folks want...there is so much to see and do....the tunnel of tree's is great and beautiful....the bridge and/or going to the island....give me your ideas and what you would like to plan....can you manage to make the Cruise if you are coming this way???