http://www.bbc.com/news/world-asia-china-37127725
It's finally happening.
This weekend, the much heralded "world's highest and longest" glass-bottomed bridge will open to visitors in central China.
It connects two mountain cliffs in what are known as the Avatar mountains (the film was shot here) in Zhangjiajie, Hunan province.
香港幾時有呀