I guess that makes sense: Turns out that our national seashores lie at sea level, and thus any low-lying land nearby might get flooded if there is a storm surge or a high tide or both

Rebuilding After Sandy: Moving The National Park Service Forward With An Eye On Climate Change

Lying at sea level as they do, national seashores -- Cape Cod, Fire Island, Assateague Island, Cape Hatteras, Cape Lookout, Cumberland Island, and Cape Canaveral -- are helpless when the Atlantic is churned by storms, and to sea levels rising as the polar caps melt. Much of the land in those seashores is barely 1 meter above the current sea level, Stephen Saunders, president of the Rocky Mountain Climate Organization, said last August. That low-lying landscape makes them highly susceptible to overwash and higher sea levels, he said.

Sandy proved him correct, as Assateague Island sustained overwash in many areas and Fire Island was breached by the hurricane's punches.