We come from Zhangjiajie,provide local travel service!
Mar 8th that day is Ladies' Day in China,most ladies have this day off or half day off.
Zhangjiajie National Forest Park have pormotion for March 8th,as beginning of March still low season in Zhangjiajie,the government want to attract more business for Zhangjiajie.Since March 8th the Ladies' Day,Zhangjiajie National Forest Park will be free of ticket for Chinese ladies.Personally I think this will attract many tourists from all parts of China,but please be noticed that the pormotion only for Mar 8th one day and only for Chinese ladies,almost all guests will be enter the park on this day,so for foreigners please avoid entering the park on Mar 8th,if you have other days in Zhangjiajie.
Zhangjiajie National Forest Park sometimes have pormotion when local government have 7 days festival for National Forest Park(winter time low season as less tourists,all tourists free for entrance ticket,that's few years ago,now no more available),when summer(free for students under 19 years old,that's the summer of 2013),and winter season(every year Dec to Feb,low season ticket,save 109 CNY each for entrance ticket of the park).