NC's Oregon Inlet = Dangerous Water
Charlotte.com (free subscription required) talks about North Carolina's Oregon Inlet as being one of the "five most treacherous inlets on the Atlantic coast".
"The water is cold and rough, and anglers chasing big stripers sometimes forget how dangerous a place Oregon Inlet can be," Willard said. "Fishermen are working lures and baits in inlet whitewater and get so caught up in the action they don't pay enough attention to incoming waves and they get in trouble."
The Coast Guard says that they get about 10 calls a month to rescue boaters who have capsized or are otherwise in the water. I suppose that "graveyard of the Atlantic" title for the Outer Banks is a pretty descriptive thing.