China has opened a 100-metre-long glass skywalk stretching around a cliff on the side of the Tianmen Mountain in Hunan province. The skywalk provides a view of a 300-metre drop and overlooks Tongtian Avenue, a mountain road with 99 turns that snakes up the mountain. When translated in English, it means “Avenue to the Sky”. The 1.6-metre wide glass-floored skywalk has been dubbed “Coiling Dragon Cliff” and is the third of its kind in the area. The area is incredibly popular with tourists and has a range of attractions including a cable car that transports people from the nearby train station to the top of the mountain. The first of Tianmenshan's skywalks opened in November 2011 and has since become a tourist hotspot. The world’s longest glass-bottom bridge is set to open soon in Zhangjiajie National Forest Park. The bridge will be 430-metres long and six metres wide). (Photo by VCG/VCG via Getty Images)





Tourists walk on the 100-meter-long and 1.6-meter-wide glass skywalk clung the cliff of Tianmen Mountain (or Tianmenshan Mountain) in Zhangjiajie National Forest Park on August 1, 2016 in Zhangjiajie, Hunan Province of China. The Coiling Dragon Cliff skywalk, featuring a total of 99 road turns, layers after another, is the third glass skywalk on the Tianmen Mountain (or Tianmenshan Mountain). (Photo by VCG/VCG via Getty Images)





Aerial view of tourists walking on the 100-meter-long and 1.6-meter-wide glass skywalk clung the cliff of Tianmen Mountain (or Tianmenshan Mountain) in Zhangjiajie National Forest Park on August 1, 2016 in Zhangjiajie, Hunan Province of China. (Photo by Imaginechina/Rex Features/Shutterstock)





Aerial view of tourists walking on the 100-meter-long and 1.6-meter-wide glass skywalk clung the cliff of Tianmen Mountain (or Tianmenshan Mountain) in Zhangjiajie National Forest Park on August 1, 2016 in Zhangjiajie, Hunan Province of China. (Photo by Imaginechina/Rex Features/Shutterstock)





Tourists walk on the 100-meter-long and 1.6-meter-wide glass skywalk clung the cliff of Tianmen Mountain (or Tianmenshan Mountain) in Zhangjiajie National Forest Park on August 1, 2016 in Zhangjiajie, Hunan Province of China. (Photo by VCG/VCG via Getty Images)





Aerial view of tourists walking on the 100-meter-long and 1.6-meter-wide glass skywalk clung the cliff of Tianmen Mountain (or Tianmenshan Mountain) in Zhangjiajie National Forest Park on August 1, 2016 in Zhangjiajie, Hunan Province of China. (Photo by Imaginechina/Rex Features/Shutterstock)





Tourists walk on the 100-meter-long and 1.6-meter-wide glass skywalk clung the cliff of Tianmen Mountain (or Tianmenshan Mountain) in Zhangjiajie National Forest Park on August 1, 2016 in Zhangjiajie, Hunan Province of China. (Photo by VCG/VCG via Getty Images)





Tourists walk on the 100-meter-long and 1.6-meter-wide glass skywalk clung the cliff of Tianmen Mountain (or Tianmenshan Mountain) in Zhangjiajie National Forest Park on August 1, 2016 in Zhangjiajie, Hunan Province of China. (Photo by Imaginechina/Rex Features/Shutterstock)





People walk on a sightseeing platform in Zhangjiajie, Hunan Province, China, August 1, 2016. (Photo by Reuters/Stringer)