Zhangjiajie

People walk on a sightseeing platform in Zhangjiajie, Hunan Province, China, August 1, 2016. REUTERS/Stringer ATTENTION EDITORS - THIS IMAGE WAS PROVIDED BY A THIRD PARTY. EDITORIAL USE ONLY. CHINA OUT. NO COMMERCIAL OR EDITORIAL SALES IN CHINA.

Reuters

People walk on a sightseeing platform in Zhangjiajie, Hunan Province in China 

People throw mud onto each other at a crop field during Hucang Festival at Zhangjiajie, Hunan province June 5, 2013. Hucang Festival is a traditional celebration among local ethnic Tujia people, who believe the muddier a person is after the celebration, the better the harvest he or she will enjoy.

China Daily/Reuters

People throw mud at each other in a crop field during Hucang Festival at Zhangjiajie, Hunan province.