At a minimum, you need 3 to 4 days in Zhangjiajie. This gives you enough time to see all the highlights without feeling too rushed. Adding a fifth day gives you time to explore some less visited and off-the-beaten-path attractions. However, if you only have one day, you can see the top attractions.
Recommended Zhangjiajie Itineraries
1-day Zhangjiajie National Park Tour
1-day Zhangjiajie Tianmen Mountain Tour
1-day Zhangjiajie Grand Canyon Glass Bridge Tour
3-day Zhangjiajie National Forest Park Tour
4-day Zhangjiajie National Forest Park & Tianmen Mountain Tour
4-day Zhangjiajie National Park Glass Bridge & Tianmen Mountain Tour
5-Day Zhangjiajie Highlights Tour