Hundreds of stinging jellyfish have been discovered on Fylde Coast beaches, the Coastguard has warned.
A bloom of Lions Mane jellyfish started washing ashore from Cleveleys to Lytham over the past week and coastguard officers are warning that their stings can pack a powerful punch.
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The brainless creatures are frequently found drifting off the coast of the UK, but jellyfish experts say that the recent spell of warm weather has led to them drifting further inshore.
The Coastguard is now warning members of the public to take care, saying that even though the creatures are dead, they still are able to sting.
Paul Little, Station Officer for the Lytham and Blackpool Coastguard Rescue Team said: "It started a week ago when a bloom of jellyfish drifted into the area.
"They have been washing up from Cleveleys down to Lytham. They look about the size of a dinner plate.
"Even if they are dead they will still sting you if poked.
"The sting will usually be no more serious than a bee or a nettle sting, but if you are unlucky and allergic to the sting, it could have potentially serious consequences.
"Most people will usually get a blister. The best thing to put on it is vinegar. Urinating on the sting also helps, but it's not very hygienic - I think most people would prefer vinegar.
"But please just try to avoid them in the first instance.
"Dogs need to be kept on leads as the stings also pose a risk for them and they are particularly at risk of being stung on the nose.
"The jellyfish are usually floating offshore, but the recent calm weather brought them further inshore.
"Now they are there there is a danger more will be washed ashore."
The Lion's Mane jelly fish is the largest known species of cold water jellyfish.
The jellyfish is named after its trailing tentacles which are reminiscent of a lion's mane. It is also known as the Giant Jellyfish or the Hair Jelly.