30 DeTour Reef (MI 37)
September 2, 2003
latitude 45º 56' 56.8" N
longitude 83º 54' 11.9" W

We had some extra time on our cruise due to the mild weather, so went on to see "De Tour".  Only problem (as you can see) is when the cold water from the St. Mary's River came into the warm water of Lake Huron, a rather (that's a British understatement) thick fog generated.

This picture is significantly digitally enhanced to show you anything.  Without that enhancement, Pea Soup would have been clearer.