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Thunder Bay Cardboard Boat Regatta

Thunder Bay Cardboard Boat Regatta

Spectators look on as homemade cardboard boats race across the Thunder Bay River in Michigan during the 1st annual Cardboard Boat Regatta on July 4, 2011. The Regatta is part of Thunder Bay National Marine Sanctuary Maritime Festival, a celebration of the area's rich maritime heritage and America's birthday!

Thunder Bay Cardboard Boat Regatta

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