A group of young swimmers covered more than 11km between them during a sponsored event.
The eight children, aged between nine and 11, covered the massive distance during a swim to raise money for Marie Curie Cancer Care.
The event took place at the Sportspace swimming pool in Hemel Hempstead.
Mum Michelle O’Brien, whose son Tyler was one of the swimmers, said: “They worked extremely hard. They were very tired afterwards and worn out but they really wanted to do it. It wasn’t easy for them.”
Other members of the team were Emily Keenan, Lucy Munroe, Mia Hobson, Ben Hubbard, Jessica Hubbard, Alice Fender and Sharone Kallinga, who are all pupils of St Cuthbert Mayne Junior School in Hemel Hempstead and members of the Hemel Hempstead Swimming Club. They raised a total of £650 for the charity.
Another charity fundraiser, Kyle Stephens, has completed a challenge of running three marathons in aid of Epilepsy Action.
Kyle, 28, ran the London, Brighton and Milton Keynes marathons over two weeks after giving up smoking.
He said: “I rewarded myself with a cigarette after each marathon. I used to be a 20 a day smoker. I feel really proud of myself now that I have done it.
“A year ago I would only run to the shop to buy 20 cigarettes or to the bar for a pint.”
Kyle wanted to raise the money for Epilepsy Action because his 17-year-old niece Siobhan suffers from the condition. He said he now plans to stay away from smoking for good.