A competitor jumps from the Old Bridge during Red Bull Cliff Diving Competition in Mostar, Bosnia and Herzegovina on August 15, 2015. (Photo by Dado Ruvic/Reuters)

Runners cross the Verrazano-Narrows Bridge shortly after the start of the New York City Marathon in New York, November 2, 2014. (Photo by Lucas Jackson/Reuters)

This picture taken on April 5, 2022 shows a train travelling along a bridge past cherry blossoms in Tokyo's Shinagawa district. (Photo by Philip Fong/AFP Photo)

A woman wearing a mask takes a selfie as she paddles underneath a bridge with colourful lights along a canal, Friday, July 1, 2022, in Beijing. (Photo by Ng Han Guan/AP Photo)

Washermen put their clothes out to dry on the banks of the River Yamuna as seen from a railway bridge near Agra, India, Saturday, December 17, 2022. (Photo by Rajesh Kumar Singh/AP Photo)

Despite the mild 14°С shoppers and commuters battle against the wind and rain on Waterloo Bridge, London on December 28, 2022. (Photo by Alex Lentati/London News Pictures)

Australian professional boxer Ebanie Bridges during the weigh in at The Queens Hotel, Leeds, United Kingdom on Friday, March 25, 2022. (Photo by Nigel French/PA Wire)

Discovered in 1952 by French bio-speleologist Henri Coiffait, the waterfall and accompanying sinkhole were fully mapped in the 1980s by the Spéléo club du Liban. The cave is also known as the "Cave of the Three Bridges." Traveling from Laklouk to Tannourine one passes the village of Balaa, and the "Three Bridges Chasm" (in French "Gouffre des Trois Ponts") is a five-minute journey into the valley below where one sees three natural bridges, rising one above the other and overhanging a chasm descending into Mount Lebanon. During the spring melt, a 90–100-metre (300–330 ft) cascade falls behind the three bridges and then down into the 250-metre (820 ft) chasm. A 1988 fluorescent dye test demonstrated that the water emerged at the spring of Dalleh in Mgharet al-Ghaouaghir.