A video has been making rounds that supposedly shows footage of Iceland’s version of the Loch Ness monster.

The footage of an alleged Lagarfljot river worm shows what appears to be a creature swimming in a winding motion in a river in Iceland.

A legend that dates back to the year 1345 says that the creature was once a small heather worm that was set upon a golden ring.

The people did this because they thought that the gold would grow, and the ring would become bigger and be worth more. The man returned for the ring a few days later and saw that the worm had grown much larger but the ring had not. The man threw them both into the river where the worm kept growing.

Most skeptics believe the video shows old netting that had broken free of the melting ice, not a folklore creature.