Amazing drone footage of the reportedly world's longest glass bridge in a tourist resort in south central China.

In the video, filmed over the Grand Canyon of Zhangjiajie in Hunan Province on Thursday, workers can be seen busy working on the final completion of the breathtaking glass-bottomed walkway.

According to news reports, the final steel decks of the 430-metre-long skywalk bridge was just linked to complete its general look, covering a gap of 375 metres above the 300-metre-deep canyon.

Setting to be become the longest and able to carry up to 800 visitors at one time, the glass bridge is due to open to the public before the Labour Day holiday next year to welcome travellers throughout the country.