Twelvemile Beach Campground This campground is located 15.3 miles west of Grand Marais, Michigan, off Alger County Road H-58. The campground's 36 sites are located on a high sandy plateau above Twelvemile Beach on Lake Superior. There are two disabled accessible campsites. Generator use is prohibited in the campground's west loop. Quiet hours are 8 p.m. to 8 a.m. There are three sets of stairs to the beach as well as a day use picnic area and parking. The two mile long White Birch Interpretive Trail begins and ends at the campground. The North Country National Scenic Trail treks through the campground. The entrance road winds through a picturesque white birch forest. Because the turning radius and some parking site lengths are limited within this campground, we recommend single vehicles no more than 36 feet and vehicle/trailer combined length no more than 42 feet. http://www.nps.gov/piro/planyourvisit/campgrounds.htm
Gorgeous campground for those who enjoy rustic camping (no utilities). This place is extremely popular and reservations are not taken, so arrive early. It took us two tries before we landed a site here (Hurricane River is a good backup spot). The North County Trail passes right through this campsite; the only downside is, no dogs allowed on the trail (we were issued a warning).
Not sure if you can walk along all 12 miles, but you can go for the classic long walk on the beach here and even connect to the North Country Trail. Unfortunately you can’t reserve in advance so get there early afternoon so you can get a site along the dunes or beach or with shade (or by bathrooms, whatever your priorities are). No water, bring treatment or containers. I think the lakeside sites are few dollars more. We were lucky enough to be there during a meteor shower in spring when almost no one else was around. Not the best site if you’ve got bad knees or an accessibility need, as is true for pretty much any sandy MI campground.