A young swimmer has escaped the jaws of a large crocodile, only because the animal was already full.
Locals consider the waters in Sian Ka'an, Mexico, too dangerous to swim in, and now this paddler knows why.
Amateur footage shows the crocodile pursuing the man, who was kicking frantically for the shore.
Fortunately, a quick-thinking tourist hurled an object at the giant reptile, which stopped its pursuit of the swimmer.
Manuel Cerrara, who captured the footage, told Nine News the crocodile was well-fed by tourists and fishermen.
"Unfortunately, that crocodile already associated us with food and, as the video shows, the boy was saved because the crocodile is well-fed and chased at a pace that allowed him to reach the shore," he said.
He hoped the video would serve as a warning to others.