Beijing Colour Run

Thousands of people turned out for the 'happiest five kilometres on the planet' at the Colour Run in Beijing last weekend.

Competitors run through the blue-colour area during the Colour Run at the Beijing International Garden Expo park on August 10, 2013 in Beijing, China. (Getty)

Thousands of people turned out for the 'happiest five kilometres on the planet' at the Colour Run in Beijing last weekend.