Beijing ‘Undie Run’: crazy fun for both runners and spectators

Dozens of runners took part in the annual Undie Run at the Olympic Forest Park in China’s capital Beijing, on February 24.
Runners stripped down to their underwear for a 3.5 km (2 mile) sprint as spectators flocked to the park to take photos.
The event has been organised by China’s netizens since 2012, aiming to promote environmental awareness.