1. ITV Report

Essex diver's incredible encounter with jellyfish 'the size of a person'

Lizzie Daly swimming alongside the barrel jellyfish. Credit: Dan Abbott/Wild Ocean Week

A diver from Essex has spoken of his amazement after filming a chance encounter with a jellyfish the size of a person.

Underwater cinematographer Dan Abbott, from Colchester, filmed the “giant” barrel jellyfish off the coast of Cornwall as part of Wild Ocean Week – an event celebrating the UK’s ocean wildlife.

Dan has been travelling around Britain's coastline with biologist Lizzie Daly raising money for the Marine Conservation Society (MCS).

The encounter with the jellyfish, which is thought to be the largest species found in British waters, came at their final stop.

  • Click below to watch Dan Abbott's underwater footage.

"It was enormous. The length of me – I’m not very tall but that’s still 1.5m."

– Lizzie Daly, Biologist

“In seven days we came face to face with seals on the east coast, breaching whales up in Scotland and mega pods of dolphins,” said Ms Daly.

The journey finished in Cornwall where they had planned to see blue sharks, but windy conditions meant they settled for a dive instead – going on to film the jellyfish for “up to an hour”.

Ms Daly shared a photo taken by Mr Abbott to Twitter of her swimming alongside the jellyfish, where it has been shared thousands of times and people have marvelled at its scale.

“Nature threw us a bit of curveball,” said Ms Daly.

“The best part about it is it’s picked up a lot of attention and people are now looking to UK coasts and thinking ‘we have that… how amazing’.”

Ms Daly added that barrel jellyfish are “not that rare” and are often described as being “dustbin lid sized”.

“The initial moment of seeing it was pretty mind-blowing,” said Mr Abbott.

“We both surfaced and let out a massive cheer.

“I think sometimes we don’t realise there is this amazing marine wildlife in the UK, but it’s out there and all you’ve got to do is go and find it.”