Overview

• Guardamar del Segura reinstated red flags across roughly seven miles of coastline after the mayor reported sightings increasing in frequency and number.
• Lifeguards temporarily closed and evacuated La Cantería beach in Órzola, Lanzarote, following additional sightings of Glaucus atlanticus.
• Authorities urge the public not to touch specimens, to alert lifeguards or call 112 if seen, and to follow posted instructions on affected beaches.
• First-aid guidance advises rinsing stings with seawater, carefully removing tentacle fragments, applying a cold pack, and seeking medical attention, as fresh water, vinegar, or alcohol can worsen symptoms.
• Experts describe the species as rare in the Mediterranean and say warmer seas may be contributing to recent appearances, though most stings are not fatal except for vulnerable individuals or multiple exposures.