My eleventh hour suggestions to Tony (minus the ones some of you beat me to posting):

Granite Island, MI

Sand Hills, MI

Au Sable Point, MI

Beaver Island, MI

Thunder Bay Island, MI

Rock Harbor, MI

Kewanaw Waterway Upper Entrance Light, MI

Manistique East Breakwater Light, MI

Charlevoix Pierhead Light, MI

I put in a few extra to help Tony fill in some of the Michigan "holes".