Beaches in the Canary Islands were closed this week after a "dangerous" sea creature was spotted in the water.

La Cantería beach in Órzola, Lanzarote, was temporarily closed earlier this week after lifeguards and bathers reported sightings of several blue dragons, also known as Glaucus Atlanticus.

The rare sea slug can be extremely dangerous due to its powerful sting.

Swimming was also prohibited across some beaches in Mallorca where the sea creature was also spotted.

Spanish news agency Canarian Weekly reported that the blue dragon feeds on venomous jellyfish, such as the Portuguese man o’ war, and stores their toxins in its own body. This means that a single sting can cause severe pain, skin irritation, vomiting, fever, and, in some cases, more serious allergic reactions.

Officials

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