The park in Zhangjiajie, Hunan province, is a world natural heritage site, a global geopark and China's first national forest park. (Photo:chinadaily.com.cn)

The park in Zhangjiajie, Hunan province, is a world natural heritage site, a global geopark and China's first national forest park. (Photo:chinadaily.com.cn)

The park in Zhangjiajie, Hunan province, is a world natural heritage site, a global geopark and China's first national forest park. (Photo:chinadaily.com.cn)

The park in Zhangjiajie, Hunan province, is a world natural heritage site, a global geopark and China's first national forest park.(Photo:chinadaily.com.cn)

The park in Zhangjiajie, Hunan province, is a world natural heritage site, a global geopark and China's first national forest park. (Photo:chinadaily.com.cn)