Richard Collins: Welcome hungry leatherbacks to chomp on lion's mane jellyfish

These hardy-looking turtles are now regular visitors to Irish shores — good news for swimmers put off by the abundance of lion's mane and compass jellyfish drifting by our coast

Compass jellyfish and Lion's mane jellyfish are part of the Leatherback turtle diet

Swimming in the sea is all the rage around the country. Bathers braved the waters even on the coldest days last winter. 

However, now a problem has arisen: there has been an alien invasion. Compass and lion’s mane jellyfish have arrived in strength, ready to sting anyone who blunders into their dangling tentacles.