It's just over two years until the start of the 2012 Paralympics and to celebrate the countdown one unusual Paralympic sport - boccia - has been showcased in Trafalgar Square. A sport, similar to bowls, that Great Britain excels at.
Mayor of London Boris Johnson organised the event to highlight the fact it is two years until the start of London's 2012 Paralympic Games.
Gold medal winning ParalympicsGB Boccia athletes and members of London Boccia clubs showed the Mayor how to play a game of the unique Paralympic sport, designed for athletes with severe disabilities.
They were joined in the Trafalgar Square celebrations by Paralympian wheelchair basketball player, Ade Adepitan, members of British Paralympic Association and GB Boccia and BT, official partner of the London 2012 Olympic and Paralympic Games.
The ParalympicGB Boccia team is currently ranked number one in the world, having claimed gold at the Beijing Paralympic Games and recently won three silver medals at the World Championships in Portugal.
BBC London's Nick Beake reports.