Warning to swimmers over 'world's longest animal' spotted at Wales beach

A warning has been issued to visitors of a popular beach after some dangerous jellyfish were discovered.

Richard Lee was walking alongside Traeth Lligwy, near Moelfre, Wales, when he came upon several Lion's mane jellyfish. While the sting from this particular species of jellyfish are rarely lethal, they can cause severe skin reactions that feel like a really bad nettle rash.

If someone gets stung by a Lion's mane jellyfish, North Wales Wildlife Trust (NWWT) advises to go see a doctor if symptoms become particularly severe. The sea creature gets its name from its red-orange cluster of tentacles that can reach astonishing lengths, North Wales Live reports.

Read more:Manchester Airport worker's top tips for dealing with the travel chaos this summer

In fact, it is often referred to as the world's longest animal and in one sighting off the coast of Massachusetts, USA, it was found to have tentacles measuring 36.6 metres (120ft) in length. Mr Lee said that the ones he saw on Lligwy beach were much smaller and measured around 1.5ft in length.

“I came across this bad boy on my last day on the island," he said. "There were a few others on the beach. As the summer school break has just started, I thought visitors should be warned before some poor kid gets hurt.”

Lion's manes are typically found in waters to the north of Scotland but there have been frequent sightings in North Wales. In 2016, athlete Liane Llewellyn-Hickling had to give up her attempt to become the first woman to swim around Anglesey in one go after she was stung more than five times by a Lion’s mane jellyfish.

On its website, NWWT warned: “Fragments of its tentacles will sting you even if they’re no longer attached to the jellyfish. They will still sting long