These images of the Hook Island Sea Monster were taken in 1964 by Robert Le Serrec. It was seen not only by Robert but by his family and a family friend. The creature is commonly referred to as a tadpole but is estimated to measure anywhere from 30 to 85 feet long. While nothing has been proven, this creature is thought to be an elaborate hoax using an incredibly long plastic tarp that is weighed down by sand. Others, however, believe the photos to show a real - and unknown - creature.

Le Serrec claimed that he and those he was with at the time believed that the creature could have been wounded as they had seen a large wound on its side. It was thought that it had been hit by a boat’s propeller while far out in the ocean and it had come closer to land in order to rest and heal. Le Serrec thought that this was the reason they had seen the animal in the first place.