Bathers Beware | Dangerous Lion’s Mane jellyfish spotted off Sandycove

Warning signs have been erected at the popular bathing area at Sandycove after Lion’s Mane jellyfish were spotted in the bay earlier this afternoon. Whilst bathing has not been prohibited, swimmers are advised to proceed with caution. As further precaution the lifeguard warning flags are on red and will remain in place until further notice.

While some types of jellyfish can just be a bit of a nuisance others variety, such as the Lion’s Mane jellyfish, pose a more serious threat.

Lion’s Mane jellyfish are becoming increasingly common in Irish waters. The can grow to be two metres in diameter and have a long mane of sting-covered tentacles. Their sting can be very severe and dangerous causing blisters, irritation and in some cases can cause anaphylactic shock. They’re tentacles can still sting even after they wash up. 

If stung and suffer any serious symptoms including nausea, vomiting or respiratory distress you should seek medical attention immediately. 

Check out our handy guide to help identify pesky jellyfish!

About the Author

Ann Robinson
Has a passion for coastal heritage and maritime history. Loves sharing the best of the Irish coast online. Contact me or follow me on Twitter @AnnRobinson22