Boccia showcased in London's Trafalgar Square
Trafalgar Square has been used to showcase the Paralympic sport of boccia as part of the celebrations counting down to the start of the 2012 Games.
London Mayor Boris Johnson was taught how to play boccia, a bowling sport designed for athletes with severe disabilities, by gold medal-winning Paralympians and members of London Boccia clubs.
Boccia is a sport Britain is expected to excel in during the 2012 Paralympics, which begin two years from Sunday. Britain's team is ranked No. 1 and won the gold medal at the Beijing Games in 2008.