nytimes July 29, 2021 10:01am In Michigan, a Park Made of Water #lakes #oceansandseas #shipwreckshistoric #travelandvacations #parksandotherrecreationareas #nationalparksmonumentsandseashores #nationaloceanicandatmosphericadministration #lakemichigan #nationalmarinesanctuaries #science #news In Michigan, a Park Made of Water The Thunder Bay National Marine Sanctuary is part of a system of underwater reserves around the country. They’re like national parks, but below the surface.