People cheer at the 2019 Love Bubble Run in Shenyang, capital of Northeast China’s Liaoning province, on June 1. The 5-kilometer bubble run was held at the Shenyang Olympic Sports Center to celebrate Children’s Day. Shenyang held its first bubble run in June 2015, which was also the first in China, attracting around 10,000 participants. [Photo/VCG]

Runners prepare for the Love Bubble Run to begin in Shenyang, Liaoning province, on June 1. [Photo/VCG]