Warnings Over Lion’s Mane Jellyfish

Photo © afloat.ie

People swimming in the sea during the heatwave are being warned that Lion’s Mane jellyfish are bigger than usual this year.

This type of jellyfish is the most venomous in Irish waters with sightings in the Celtic and Atlantic seas recently.

There are some reports of the jellyfish along the coast in North Clare, particulary  in the Flaggy Shore and Bishop’s Quarter areas.


While, The Irish Times reports that several swimmers in the west have received hospital treatment for Lion’s Mane stings.

Symptoms including severe headache, pain, vomiting and even cardiac arrest.