Walkway is located at Shiniuzhai Geopark in Hunan, spans 300m (984f) and is 180m (590f) above ground. The floor is reportedly 25 times stronger than regular window glass.

My fear of heights overrides logic… Will not see myself cross this leisurely

World’s Longest Glass Bridge, 590ft High, Opens In China – Tourists Too Scared To Walk It
A terrifying wooden bridge in China has just been replaced by a glass one. This, the world’s longest glass-bottomed walkway, is located in Shiniuzhai Geopark in Hunan, and spans 300m (984f) and is 180m (590f) above ground. The floor is made of double-layered glass that is 24mm (0.94in), and is reportedly 25 times stronger than regular window glass.