Beautiful ride south on M-25 with stunning views of Lake Huron along the whole way. Then climb west along M-136 through the Beard Hills hugging the Black river and into Avoca for a nice breakfast at Kay's Kitchen. Head north on Fargo to Yale Road, jogging west to Duce and then a straight shot in Duce through miles and miles of Michigan agriculture 'til M-90, Then east into Croswell fir a rest at the eighth wonder of the world: The Croswell Swinging Bridge. Then out past the Pioneer Sugar factory then east down up hill into Lexington and beautiful Lake Huron. Down up hill because your heading down to the lake from Croswell but you are climbing along most of the way down. In other words a five mile coast with view of the coast. A great way to end a metric century.