Prince William has recorded a video message outlining importance of teaching children to swim.
It follows a report by the Amateur Swimming Association (ASA) which shows more than half of children aged 7-11 years cannot swim 25 metres unaided.
"Swimming has always been important to me," the Duke of Cambridge said. "Swimming is unique, it is the only sport that can save lives, which is why I'm so keen for school swimming to be accessible for all children at all primary schools."
He added: "The ability to swim changes lives, it brings huge joy and it can keep us fit and healthy. But above all, it can keep us safe, which is why I'm pleased to lend my support to this campaign."
US Masters Swimming Executive Director Rob Butcher confirmed that disgraced cyclist Lance Armstrong has pulled out three events he was scheduled to appear in this weekend.
Butcher told the Associated Press that the change of heart was likely caused by objections raised by FINA, the international governing body for swimming.
He doesn't want to cause any more harm to any more organisations. His interest was around fitness and training. In light of FINA and the other political stuff, he will not be swimming.
Lance Armstrong has pulled out of the swimming competition he was due to take part in this weekend in Austin, Texas, Sky News report.
FINA, the international governing body for swimming, has written to the US Masters Swimming to advise them to reject Lance Armstrong's entry to take part in a competition scheduled this weekend.
The disgraced cyclist was planning to use the small low-profile event in Austin, Texas, to make a return to competitive sport.
The competition falls under the jurisdiction of the US Masters Swimming. In a statement, the governing body said:
FINA wrote a letter to the US Masters Swimming (with copy to US Aquatic Sports and USA Swimming) requesting not to accept the entry of Mr. Lance Armstrong in the [...] competition.
Lance Armstrong's return to competitive sport this weekend will be against veteran swimmers, a Texas newspaper reported.
Most competitors in the US Masters Swimming event entered by Armstrong will be older than the 41-year-old cyclist, the Austin American-Statesman said.
Armstrong is banned for life from all competitions that adhere to world anti-doping codes, but is allowed to take part in the low-profile Austin swimming event.
US Masters Swimming executive director Rob Butcher said nobody had raised formal objections to Armstrong competing.
Butcher added: "The purpose of our organisation is to encourage adults to swim."
Lance Armstrong is planning to make a return to competitive sport as a swimmer this weekend.
The disgraced American cyclist is entered for the Masters South Central Zone Swimming Championships, which takes place at the University of Texas.
Armstrong is set to compete in freestyle races over 500 yards, 1,000 yards and 1,650 yards at the event in his home city of Austin.
Armstrong was stripped of his seven Tour de France titles last year for being part of a doping scandal.
I want to make it clear that we are working very closely with HM Coroner and the family to keep them fully informed as the investigation progresses.
However, I also want to stress that there are no suspicious circumstances.
We are devastated. Chloe was exceptionally outgoing, extremely popular and had a wonderful smile - she was always smiling at all times and she had a kind word for everybody at all times.
There was never adark day for Chloe, everywhere she went she had lots of friends. She was charming and polite, accepting and encouraging.
She worked incredibly hard. She loved swimming, she was very focused on it and she wanted to go as far as she could. She was also bright academically, everything she did she gave 100 percent. We are very proud of her.
Double world open-water champion Keri-anne Payne tweeted:
The parents of Chloe Waddell reportedly tried to revive her after finding the swimmer unconscious at their home in Timperley.