The Bach Long pedestrian bridge – whose name translates to “white dragon” – in northwest Son La province snakes around dizzying cliff faces before spanning a dramatic valley between two peaks, hitting a total length of 632 metres.

The floor of the bridge is made from French-produced tempered glass, making it strong enough to support up to 450 people at a time, while giving them a spectacular view of the greenery in the gorge far below.

“When standing on the bridge, travellers will be able to admire the beauty of nature,” a representative of the bridge’s operator Hoang Manh Duy said. The company said it is the world’s longest glass-bottomed bridge, surpassing a 526-metre structure in Guangdong, China.

Visitors stand on the walkway section of the Bach Long glass bridge in Moc Chau district in Vietnam’s Son La province. Photo: AFP
Visitors stand on the walkway section of the Bach Long glass bridge in Moc Chau district in Vietnam’s Son La province. Photo: AFP

Officials from Guinness World Records are expected to verify the claim next month.

Vietnamese tourism chiefs are seeking to lure visitors back after two years of COVID-19 shutdowns that kept out foreign travellers.

In mid-March, the country ended quarantine for international visitors and resumed 15 days of visa-free travel for citizens from 13 countries.

Bach Long is Vietnam’s third glass bridge.

“I hope the bridge will lure more domestic and international tourists to our area,” local resident Bui Van Thach said after walking across it.