The Color Run - Belfast

BELFAST, UNITED KINGDOM - AUGUST 24: Runners take part in the Color Run on August 24, 2013 in Belfast, Northern Ireland. Known as the happiest 5km on the planet, runners of all shapes, sizes and speeds wearing white clothing that is a blank canvas for the kaleidoscope of colours they encounter around The Colour Run course. At each kilometer a different colour of powder is thrown in the air with the runners becoming a constantly evolving artwork. At the end of the course runners are greeted by the Colour Festival where the air is filled with music and stunning colour powder bursts creating a vibrant party atmosphere. (Photo Carrie Davenport /Getty Images for Dulux)