The main species of jellyfish you're likely to encounter on Welsh beaches are: the lion's mane, compass, barrel or root mouth ...

Image: A compass jellyfish in Aberaeron by Shane Jones. For a small country, Wales has an abundance of coastline which attracts a wide variety of marine life due to our proximity to the Gulf Stream.

It tends to appear in the UK in late summer and autumn. Compass jellyfish are a translucent yellowish-white colour with brown ...

While some jellyfish species seem to thrive on human disturbance—off the coast of Namibia, for example, overfishing may have tipped the ecosystem into a new state dominated by compass and ...

Read our guide to find out what jellyfish you might have seen on local beaches near you. Remember not to get too close, jellyfish can sting! Compass jellyfish ©Alex Mustard/2020VISION Compass ...

This isn't a jellyfish, but a floating colony of hydrozoans. By-the-wind-sailors grow up to 10cm long and are blue-purple in colour. They have an upright sail with a mass of small tentacles ...

Larger Common jellyfish develop tentacles and these can deliver a mild sting, but on the whole, they are relatively harmless. Another jellyfish often encountered in Louth is the Compass. It has brown ...