WHY DIVE Thunder Bay National Marine Sanctuary & Underwater Preserve Thunder Bay National Marine Sanctuary, where is this place?
Why is it special? What do they have there that would make a trip worthwhile? In one short word History. Thunder Bay National Marine Sanctuary and Underwater Preserve is located in the Great Lake Huron. Huron is about 220 miles long, 200 miles wide, and over 800 deep. Huron is neither the largest, or the deepest of the Great Lakes but it has been the cross roads of Great Lakes traffic since the 1800s. Whether the cargo was grain from Wisconsin or Illinois bound for the east, steel from Lake Erie ports headed for Chicago and points west, iron and copper ore headed from Lake Superior for the steel mills of Ohio and New York, it traveled across Lake Huron and rounded Thunder Bay Island. On their way across Lake Huron vessel traffic had to make at least two major course changes, one off of Michigans Thumb and another between Thunder Bays North Point and Presque Isle to the north. Because the shortest distance between two points is a straight line, every mothers son of a Captain was trying
