Pointe Aux Barques Lighthouse. It was also so named to warn large ships to avoid traveling along the shoreline at that point as only a few feet of water covers the reef which juts out almost 2 miles into Lake Huron at Pointe Aux Barques.

Incidentally, having been there 4 times, I highly recommend visiting it as it's a beautiful active light station and the tower can be climbed when the museum is open unless things have changed since I was last there about 2 1/2 years ago.