Hi any recommendations on what to do while traveling Zhangjiajie in July for three days?

Hi, Ryan! I’d like to give you a suggested itinerary:
On the first day, you can visit ZJJ National Forest Park and Yuanjiajie Scenic Area.
Next day, you can enjoy Yangjiajie Scenic Area and Tianzi Mountain.
The last day can be spent on ZJJ Grand Canyon and the Glass Bridge.