Tourists walk in the snow-covered Huangshizhai Scenic Area, part of the Wulingyuan Scenic Area in Wulingyuan District, Zhangjiajie, central China's Hunan Province. (Xinhua/Wu Yongbing)

Tourists walk in the snow-covered Huangshizhai Scenic Area, part of the Wulingyuan Scenic Area in Wulingyuan District, Zhangjiajie, central China's Hunan Province. (Xinhua/Wu Yongbing)

Tourists walk in the snow-covered Huangshizhai Scenic Area, part of the Wulingyuan Scenic Area in Wulingyuan District, Zhangjiajie, central China's Hunan Province. (Xinhua/Wu Yongbing)

Tourists walk in the snow-covered Huangshizhai Scenic Area, part of the Wulingyuan Scenic Area in Wulingyuan District, Zhangjiajie, central China's Hunan Province.(Xinhua/Wu Yongbing)