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.

Films that are being screened are advertised in a makeshift cinema located under a bridge in the old quarters of Delhi, India May 25, 2016. A makeshift cinema hall under a 140-year-old bridge in the Indian capital is allowing poor rickshaw pullers and migrant labourers to escape daily hardship and sweltering heat into a world of Bollywood song, dance and romance. With the rusty iron floor of the bridge as its ceiling and some old rags acquired on the cheap from a nearby crematorium serving as curtains and floor mats, the cinema shows four films a day. (Photo by Cathal McNaughton/Reuters)

Cosplayers attend the MCM Comic Con London 2022 at the ExCel Centre in London in London, Britain on October 28, 2022. (Photo by Maja Smiejkowska/Reuters)

A masked reveller parades through the streets on the first day of the carnival season in Lucerne, Switzerland, 12 February 2015. In the background the well known Kappellbruecke bridge. (Photo by Alexandra Wey/EPA)

Newlyweds take wedding photos hanging from bridge, Yueyang, Hunan province, China on August 9, 2016. They held such a special wedding ceremony on China's Qixi Festival. (Photo by Top Photo Corporation/Rex Features/Shutterstock)

Men rest on a boat in the overflowed Ganges River under the Shastri Bridge in Allahabad on August 17, 2022, as water levels of the Ganges and Yamuna rivers rose following monsoon rainfalls. (Photo by Sanjay Kanojia/AFP Photo)

Students leave school via a bamboo bridge after the area was hit by floods in Gazipur, Bangladesh on September 12, 2021. (Photo by Harun-Or-Rashid/Eyepix Group/Rex Features/Shutterstock)

The trailer of an articulated lorry juts into the air after the vehicle came off a bridge on Interstate 81 southbound in Butler Township in Pennsylvania, US on November 9, 2021. (Photo by Sean McKeag/AP Photo)