Video: Olympic and Paralympic Athletes' Parade: Trafalgar crowds cheer sporting heroes The crowds, dozens deep in places, were a sea of red, white and blue as fans waved Union flags at the passing floats as they travelled through Admiralty Arch into The Mall, travelling down to the Queen Victoria Memorial. Some took vantage points from on high with flags flying from office windows and on top of buildings. Around 800 athletes travelled on 21 floats, grouped in alphabetical order by their sport. Olympic stars included Jessica Ennis and Sir Chris Hoy, while Hannah Croft and Jonnie Peacock were among the Paralympians to take part. A Red Arrows fly-by displaying the colours of Great Britain - red, white and blue - completed the celebrations which ended over a month of Games' action in London.