A cystic fibrosis charity is holding a virtual balloon race to raise funding for life-changing research.
Entrants will release a computerised balloon into a virtual sky for a seven-day race.
The path each balloon takes will depend on real weather conditions and how the balloon has been personalised.
Student Daren Butler, from Acton, who has cystic fibrosis, has encouraged people to get involved.
“I have many friends that have lost their battle to this horrible disease,” said the 23-year-old. “It’s a massive struggle every minute of every day.
“I want to help people realise the amount it can affect families and people’s lives, and that people who have this illness don’t have to suffer alone when there are many others out there with the same condition.”
Each virtual balloon can be personalised by choosing the size, shape and thickness of the rubber to increase its flying chances.
Anyone taking part in the race on March 21 will be in with the chance of winning a number of prizes, including an iPad Air, a hot air balloon ride and a weekend for two in London.
Entry is £5. Go to www.cysticfibrosis.org.uk/balloon.