Video: Boris Johnson gets medal as Paralympians return to Olympic Park The London mayor was presented with his prize by International Paralympic Committee member Rita van Driel, who praised him for being a "huge advocate" of the Paralympic movement. Mr Johnson announced that National Paralympic Day would become an annual event to mark the anniversary of the London 2012 Paralympics. Boccia, table tennis, sitting volleyball and wheelchair basketball matches involving Great Britain that took place in the 7,000-seat Copper Box Arena. The international matches were combined with the disability sport participation programme Time to Shine. The occasion also featured a cultural and arts event called the Liberty Festival. It was curated by Bradley Hemmings, one of the artistic directors of the London 2012 Paralympic opening ceremony, and brought deaf and disability arts to the park, including street theatre, dance and live music. Wheelchair racers Hannah Cockroft and David Weir were among the Paralympians who returned to the park to relive the magic of the Games. Source: ITN and PA