This astonishing footage shows how a Florida man was towed for miles by an 11-foot long hammerhead shark, captured by his head-mounted camera.
The shark attached itself to one of the poles from Adam Fisk's kayak, according to the Tampa Bay Times.
The resulting six-minute YouTube video "Lone Man Gets Towed For Miles in Kayak By 11 Foot Hammerhead Shark" went viral.
It shows Fisk's kayak being pulled along at 8 miles an hour.
The 22-year-old student, who belongs to an "extreme fishing" collective who blood into the water to film sharks coming close, told the paper that he was not in fact on an extreme mission that day, and had set out to catch mackerel.
Fisk later told Storyful the hammerhead shark “towed me for about two hours up and down the coast and ended up taking me offshore at least a mile and a half. I ended up releasing it.”