On Wednesday, September 2, the natural wonder of Iguazu Falls, spanning the border between Brazil and Argentina, experienced astonishing water flow. Due to continuous heavy rainfall throughout the Iguazu River basin, coupled with the potential influence of the El Niño phenomenon, the volume of water at the falls surged to more than five times the average level, presenting a breathtaking natural spectacle.
According to data from Iguazu National Park, on that day, the measured water flow of this largest waterfall system in the world exceeded 8.3 million liters per second. In comparison, the regular historical average flow of the waterfall is only about 1.5 million liters per second.
Reports from Reuters stated that Andre Franzini, a biologist and sustainable development manager at Iguazu National Park, mentioned that the Iguazu River originates from the metropolitan area of Curitiba and eventually merges into the Parana River. The sharp increase in water volume is a result of accumulated heavy rainfall in the entire basin in recent days, potentially driven by this year’s powerful El Niño phenomenon.
The park authorities have activated emergency safety protocols and are monitoring the water flow changes in real-time. Currently, core areas including the viewing platforms overlooking the famous “Devil’s Throat” and the waterfall trails remain open to visitors. This rare and awe-inspiring sight of the thundering waters has attracted tourists from around the world to witness the majestic power of nature.
Iguazu Falls is located at the border of Foz do Iguaçu in the Brazilian state of Parana and Argentina, adjacent to Paraguay. Recognized as a UNESCO World Heritage Site, it consists of approximately 275 individual waterfalls forming a horseshoe-shaped cascade spanning 2,700 meters. It has been named one of the “New Seven Wonders of the World” and is one of the most renowned tourist destinations in South America.
However, behind the magnificent spectacle lies hidden dangers. Throughout history, Iguazu Falls has been prone to extreme flooding incidents. In 2014 and 2022, the water flow at the falls skyrocketed to over 10 million liters per second, causing severe flooding. The iron observation walkways on the Argentine side leading to the “Devil’s Throat” were destroyed and fractured by the raging waters, forcing the closure of the area for emergency repairs.
While the extreme water flow brings visual awe, it also tests the warning and protection capabilities of the park.