He quickly alerted his mum, Shelley Tansell, who got in touch with Agriculture, Countryside & Land Management Services to help with identification.

"For safety and to avoid my children or other swimmers potentially being stung, I caught the jellyfish - the size of my hand - in a crabbing drop net," she explained.

Pictured: The family caught the jellyfish in a crabbing net.

"We wouldn't normally touch or disturb jellyfish, we usually just avoid them, but it was being continually hit against the lip of the shallow end and I thought it was best to move it."

The creature was identified as a Cynaea Lamarkii blue jellyfish - also known as a Blue Fire - and the family was advised to safely return it to open water.

"I did so into Havelet Bay off the back of the steps of the small pool, as the tide took the jellyfish out to sea and not back into the pools," Shelley said.

"Our boys have added their sighting to the Guernsey jellyfish sighting records. The tentacles were approximately 30cm and it tried to extend the tentacles and push them up to grip onto the sides of the top of the bucket whilst it parachuted in the bucket up and down.

Pictured: The boys saw the jellyfish while playing in the pools.

"I released it safely and we saw the jellyfish swimming and taken far out to sea. It was amazing to see all the tentacles moving and it in its full glory.

"I think it’s really amazing to see nature and respect nature and we can share the excitement as the boys were able to tell their positive exciting experience to others."

The sighting has definitely been a topic of conversation for the three young brothers, who shared their story and pictures of the jellyfish with their classmates.

"On a scale of one to ten, seeing this Blue Fire was definitely a ten," said Fionn. "It was very exciting and I hope to see another one again!"

Shelley hopes her family's story will encourage other parents to teach their children about the wonders of our shorelines.

Pictured: The jellyfish was spotted in the Ladies' Bathing Pool.

"So many children and adults see jellyfish as a nuisance and avoid beaches when there are sightings, but actually when I grew up we learnt from older children and our parents and grandparents how to enjoy them and see their beauty," she added. "We always looked out for jelly fish at high tide and weaver fish at low tide, but were never frightened of them.

"We learnt how to treat it if any of us came accidentally into contact with them, we learnt all about their names and interesting facts and most children when we were young actually thought they were really exciting and really cool!

"We were always hoping to see one to tell everything to our friends. These jellyfish are fun to see and beautiful."

Further information and advice following jellyfish sightings can be found here.

Pictured top: Ciaran Tansell (3), Fionn Tansell (6) and Liam Tansell (6).