Things could still be cool in June areas of the UP may still have ice on Superior in May, so be warned.
If you're coming up from Illinois hit the Door, I still want to see it then you could hit a variety of places traveling along the Lake Michigan side of the UP including Big Springs, Fayette State Park and onto St Ignace. We had friends stay at Straits SP and they said it was real tight. Others here seem to like Mackinaw Mill Creek south of the bridge.
The Soo is nice but you may not have the time, I've met many that like Aune Osbourne on the St Mary's, with the ability to watch freighters from your site and up close. Soo Lock Tours and Museum Ship Valley Camp.
The falls is nice, Whitefish Pointe, and I am partial to Crisp Point Lighthouse since we have volunteered there in the past, but that is too adventurous for some.
Pictured Rocks is a must, Grand Marais is on the eastern end and Woodland Campground is first come first served city campground with water, electric, and cable, no sewer. Small town with a couple of restaurants, not much else but a town we enjoy.
Munising is on the western end and has much more in the way of stores. Munising Tourist Park has some full hookups and sites right on Superior. I believe there early reservations started Oct 1 for 2016.
If you like to kayak, checkout Michigan Paddling or Uncle Ducky's on Facebook, they run 2 for 1 specials in January or February and you can kayak along the Rocks. Makes for a much more personal and up close experience compared to the boat tours. June could be tough due to weather and temps.
I think Mclain State Park is a fine choice and has beautiful sunsets. Great base camp to explore the Keweenaw and surrounding areas, Copper Harbor can be visited in a day with your short schedule from Mclain. Houghton also has a campground on the Portage Canal that may have full hook ups but without the sunsets.
If your into hiking stop at Porcupine Mtns, if not you can easily stop in and see the Lake of the Clouds overlook and stop along the western end along the Black River and see some of the falls, a real beautiful area too.
Keep on trucking and hit the Apostle Islands, I haven't been there as of yet but read some good threads on camping in Wisconsin and possibly the Duluth area.
Enjoy
Steve
SE Michigan
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