A marine scientist is warning beaches may have to close because of huge numbers of jelly fish.
Hundreds of harmless barrel jelly fish are washing up around the West Country's coast.
But Dr Keith Hiscock warns people should be careful if more poisonous species appear.
He describes this as the year of the jelly fish because of the huge numbers.
Here's some evidence of the increasing numbers of jellyfish being washed up on our coastline.
This chap was spotted by one of our viewers James Crook at Dawlish sea wall on Sunday 14 June. He said it was one of four that had washed up on the beach looking very "fresh and alive".
Huge barrel jellyfish have been spotted in West Country waters in recent weeks.
This one was filmed by kayaker Jason Kiely in Plymouth Sound yesterday. It follows a large number of sightings off the Dorset coast - which scientists say is a growing trend.
The last year has seen a record number of jellyfish on our shores, according to a survey by the marine conservation society. It seems if you're on a beach in the Westcountry these days, they're never far away. But why are there so many more of them and are they as dangerous as some people think?
A clip from an interview with Matt Slater, of the Cornwall Wildlife Trust.
The warm weather does bring its share of unwelcome visitors - this last week has seen a surge in the number of monster jellyfish washed up on our shores.
Martin Dowse has been finding out why we're seeing so many of them.
The Marine Conservation Society is warning that warm weather in the south west could bring an influx of giant jellyfish to our coasts. A number of giant barrel jellyfish have already been washed up at Portland and Weymouth.
The species is harmless but the MCS says it's keen to hear from anyone who finds them.
If you've taken a trip to the seaside over recent weeks then you may have noticed jellyfish washed up on the shoreline or in rockpools.
According to the Marine Conservation Society, the creatures have been arriving in ever increasing numbers - and it could be the recent hot weather that's to blame.
Our Environment Correspondent Duncan Sleightholme reports: