Couple of places to consider for staying or seeing:
-Aune Osborne Campground in Sault Ste. Marie, MI (watch the freighters go by
https://www.saultcity.com/aune-osborn-campground )
-Crisp Point Lighthouse, MI (not in your rig, pretty remote
https://www.crisppointlighthouse.org/ )
-Copper Harbor, MI (
https://www.copperharbor.org/ )
-Lakehead Boat Basin, Duluth, MN (an RV park right on a dock on the harbor
Welcome to Lakehead Boat Basin Duluth Minnesota Lake Superior )
-Duluth Transportation Museum, Duluth, MN (super railroad museum
https://lsrm.org/ )
-Gooseberry Falls State Park, MN
(
https://www.dnr.state.mn.us/state_pa...00172#homepage )
-Two Harbors, MN (find Betty’s Pies
https://www.bettyspies.com/ )
-a bit off the route, International Wolf Center, Ely, MN (
https://wolf.org/ )
Have fun!