Watch: Giant squid caught on camera as it swims very close to shore
It's the stuff of nightmares.
An enormous squid, measuring 3.7 metres or 12.1 feet was spotted swimming in a bay in northern Japan on Christmas Eve.
Toyama Bay, where the sea creature was temporarily based, is located approximately 344 kilometres northwest of the capital Tokyo.
The bay is a renowned breeding ground for luminous firefly squid which typically measure 7.6 centimetres.
However it's very unusual to see a giant squid swimming this close to shore, according to diving shop owner Akinobu Kimura who spoke to CNN News.
Kimura got up close and personal with the sea creature, filming every inch of its body, before helping to guide it back to the ocean.
Mashable reports that it's the first sighting of a giant squid this season, which runs from November to March.
Last season 16 of these slinky creatures became caught up in fishing nets.