The jellyfish is not dangerous to humans, but it causes a painful sting. Though called the Australian spotted jellyfish it is also found in North Carolina and the Gulf of Mexico.
Seven beaches were closed in Spain to protect people: Cala Cerrada, La Zenia, Cala Capitan, Punta Prima, La Mosca and Playa Flamenca. There are fears that the jellyfish will arrive on British beaches this summer. Climate change, pollution and overfishing are being blamed.