Fans dressed as Spiderman race in a river during a contest in Jiulong River National Forest Park in Rucheng County, Central China's Hunan Province, July 4, 2019. (Photo: China News Service/Yang Huafeng)

Fans dressed as Spiderman race in a river during a contest in Jiulong River National Forest Park in Rucheng County, Central China's Hunan Province, July 4, 2019. (Photo: China News Service/Yang Huafeng)

Fans dressed as Spiderman race in a river during a contest in Jiulong River National Forest Park in Rucheng County, Central China's Hunan Province, July 4, 2019. (Photo: China News Service/Yang Huafeng)

Fans dressed as Spiderman race in a river during a contest in Jiulong River National Forest Park in Rucheng County, Central China's Hunan Province, July 4, 2019. (Photo: China News Service/Yang Huafeng)

Fans dressed as Spiderman race in a river during a contest in Jiulong River National Forest Park in Rucheng County, Central China's Hunan Province, July 4, 2019. (Photo: China News Service/Yang Huafeng)

Fans dressed as Spiderman race in a river during a contest in Jiulong River National Forest Park in Rucheng County, Central China's Hunan Province, July 4, 2019. (Photo: China News Service/Yang Huafeng)