Spain Costa Blanca Blue Dragon Invasion

A seven-mile stretch of Spain's Costa Blanca, specifically in Spain — Guardamar del Segura, has been closed to bathers due to an invasion of venomous sea creatures known as Glaucus atlanticus, or 'blue dragons'. These sea slugs, which feed on the deadly Portuguese man o war and concentrate its venom, deliver a potent sting causing symptoms like nausea, pain, and vomiting. José Luis Sáez, the mayor of Spain — Guardamar del Segura, confirmed the bathing ban, which will remain in place until further notice. Authorities have launched a preventive operation and are warning tourists to stay away from the creatures, with lifeguards enforcing the prohibition. Despite the ban, some beaches remained crowded, though with fewer people in the water, and those defying the order risk fines. Similar sightings have occurred in other areas, including Santa Barbara beach near Gibraltar, which was later reopened with a yellow warning flag.