Fishermen are seen near thousands of fish found dead at Lake Maninjau due to lack of oxygen levels at the bottom of the lake and bad weather that hit the area in Agam, West Sumatra Province, Indonesia on April 29, 2021. (Photo by Muhammad Arif Pribadi/Antara Foto via Reuters)

A demonstrator gestures as she talks with a Lebanese army member during a protest as Lebanon marks the two-year anniversary of the August 2020 Beirut port explosion, in Beirut, Lebanon on August 4, 2022. (Photo by Mohamed Azakir/Reuters)

Servicewomen march during a rehearsal for the Independence Day military parade in central Kiev, Ukraine on August 20, 2018. (Photo by Gleb Garanich/Reuters)

A Sudanese woman repairs damages to her house, after torrential rain lead to landslides and flash floods, in the town of Umm Dawan Ban, southeast of the capital Khartoum on August 2, 2020. (Photo by Ashraf Shazly/AFP Photo)

Masked guests attend the “Grand Bal Christian Dior” during the Haute Couture Spring-Summer 2018 fashion collection presented in Paris, Monday, January 22, 2018. (Photo by Kamil Zihnioglu/AP Photo)

A woman dressed in traditional attire participates in a procession to mark Gudi Padwa or the Marathi New Year in Mumbai, India, Tuesday, April 9, 2024. (Photo by Rajanish Kakade/AP Photo)

A gypsy man doing their traditional performance with a Cobra snack during the outbreak of coronavirus disease (COVID-19) at Savar the outskirts of Capital Dhaka, Bangladesh on April 24, 2021. The river gypsies in Bangladesh locally known as “Bede” community. (Photo by Fatima-Tuj Johora/ZUMA Wire/Rex Features/Shutterstock)

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.