Quick, correct action can prevent serious complications from summer stings and bites — here’s how to respond on the spot.

The purple jellyfish may be beautiful to behold, but swimmers in affected regions should remain vigilant. It is advised to check live beach maps or local advisories before heading into the sea, especially in central and northern Greece and the nearby island chains

However, swimmers are cautioned to avoid touching their face after close contact, as the jellyfish can release mucus that may cause mild swelling.