Dive into the freshwater shipwreck sanctuary at Thunder Bay. The Thunder Bay Natural Marine Sanctuary is NOAA's only freshwater sanctuary, and is home to an estimated 200 wrecks. Swim, paddle, snorkel and dive to these amazing historic artifacts.

The Great Lakes Maritime Heritage Center
The Great Lakes Maritime Heritage Center
A designated 4,300 square-miles of Lake Huron makes up Thunder Bay National Marine Sanctuary, and is one of the most treacherous stretches of water within the Great Lakes system earning the area the name "Shipwreck Alley." Today, shipwrecks are preserved in clear, fresh water and offer world-class diving, snorkeling, and paddling opportunities. Through research, education, and community involvement, the sanctuary works to protect the Great Lakes and their rich history for this and future generations.
The Great Lakes Maritime Heritage Center (GLMHC) serves as the visitor center for the sanctuary, a maritime museum, and the headquarters for TBNMS researchers, protection specialists, traveling scientists, filmmakers, and educational outreach that spans the state of Michigan and beyond. With over 10,000 square-feet of exhibits, always free and open seven days a week, the center offers an engaging dive into maritime history, shipwreck stories, and artifacts brought back from the depths of Lake Huron. Visitors can walk the deck of a life-sized schooner, followed by a trip into the lake to explore a shipwreck. The GLMHC also offers special event space, meeting rooms, a digital theater, and a green roof-deck overlooking the Thunder Bay River.
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