欢迎你来Michigan,我猜你走I-75吧?

沿路没什么好玩地方Just flat country site, Ohio Valley.
Dayton (Ohio) has National Museum of the United States Air Force. Holland 1/2 hour west of Grand Rapid is a very charming small town. But you missed "Tulip Festive". Please search this website. I believe some one has posted trip notes of "Tulip Festive". 2-3 hour north of Grand Rapid, Treverse City, another very beautiful area. little too early, July 4th -"Cherry festive" you can pick up your own cherry from orchard, tast many you like. Air show every year. "Sleep bear sand dune" national park near by. You may think about find time to visty Kellogg's world headquarter (cereal company) at downtown Battle Creek, at junction of I94/I69