Drive the Tunnel of Trees highway from Harbor Springs to Cross Village, and while in Cross Village have a meal (or at least stop and walk around) at historic Legs Inn. They offer authentic Polish food.
Petoskey State Park CG is nice, but the sites can be challenging for a larger rig to back into. The town CG is down by the water, and (when I last stayed there 15 years ago) had few trees and was easy to navigate with a larger trailer.
Mike G.
Liberty is meaningless where the right to utter one's thoughts and opinions has ceased to exist. That, of all rights, is the dread of tyrants. --Frederick Douglass
photo: Yosemite Valley view from Taft Point