This story is my nightmare. From the Boston Globe, which has the chilling photo.
Walter Szulc Jr. was kayaking about 50 yards off Nauset Beach in Orleans on Saturday when he noticed a man on a standup paddleboard pointing at something just behind him.
When he turned to look, it was every swimmer’s worst nightmare: a great white shark.
He said he could see the fin coming out of the water and the long shadow, but not the head. That’s because, he said, the head was underneath him.