Have you heard about the glass bridge over the Grand Canyon of Zhangjiajie? I’ve seen photos before and finally went there during my trip to the area.
It was quite cool and I think it was cooler than the Zhangjiajie national forest park, maybe because there are less commercial activities and vendors, making it more natural and tranquil. From Zhangjiajie city you can take a mini bus to the canyon and it costs 25 yuan (~3€). The bus goes every 20-30 minutes and the bus ride is around 1h30. Right now is the low season of Zhangjiajie so you won’t see that many tourists even though the bridge is said to be World’s longest and highest Glass Bridge.