Story highlights Rare sighting of giant squid made in Toyama Bay, Japan

Diver swims with 3.7 meters (12.1 feet) long creature, which was also captured by an underwater camera

Tokyo (CNN) It isn't every day that a mystery from the deep swims into plain sight. But on Christmas Eve, spectators on a pier in Toyama Bay in central Japan were treated to a rare sighting of a giant squid.

The creature swam under fishing boats and close to the surface of Toyama Bay, better known for its firefly squid, and reportedly hung around the bay for several hours before it was ushered back to open water.

It was captured on video by a submersible camera, and even joined by a diver, Akinobu Kimura, owner of Diving Shop Kaiyu, who swam in close proximity to the red-and-white real-life sea monster.

"My curiosity was way bigger than fear, so I jumped into the water and go close to it," he told CNN.

"This squid was not damaged and looked lively, spurting ink and trying to entangle his tentacles around me. I guided the squid toward to the ocean, several hundred meters from the area it was found in, and it disappeared into the deep sea."