Iguazu Falls, on the border of Argentina and Brazil, reopened to visitors on 13 October, 2026, after temporary access restrictions for safety. The river’s flow reached 11.8 million liters per second, nearly eight times its historical average. As a result, tourist circuits on the Argentinian side of Iguazú Falls closed following this dramatic increase in the Iguazú River’s flow. The safety shutdown measure protected visitors and park staff from risks associated with intense rainfall.
The Iguazú National Park administration officially communicated the decision to tourism agencies. The restrictions protected visitors and employees, as well as the integrity of tourist facilities. Meanwhile, authorities are continuously monitoring the river’s conditions.
The Iguazu Falls, recognised by UNESCO as one of the world’s largest and most impressive waterfalls, sits on the border of Argenina and Brazil and spans approximately 2,700 metres.
El Niño linked to extraordinary rainfall
Authorities had been evaluating the possibility of suspending visits since early October 2026. The decision followed a rapid rise in the water level. The enormous force of the water can damage the extensive network of walkways and viewing platforms. Such damage could create hazardous conditions for anyone in the area. Therefore, the closure served as a critical safety protocol.
Climate forecasts had already anticipated an extraordinary rise in water levels. The peak was initially expected in September. However, the intensification of the El Niño weather phenomenon at the beginning of October altered these predictions, leading to the surge.
According to Argentinian media, persistent rains could prolong the increased flow for several more days. Consequently, authorities are maintaining constant vigilance over the river’s behaviour. In 2023 and 2024, Argentinian officials also closed the park on its side of the border over flooding caused by a previous El Niño cycle.
Key attraction safety shutdown ahead of floods
These precautionary measures also affect the Garganta del Diablo (Devil’s Throat) circuit of the Iguazú Falls, one of the park’s main attractions. In August, the Iguazú National Park administration and the concession company began dismantling the walkway’s structures. They took this step in anticipation of the predicted flooding to minimise potential damage.
For current opening hours, visit the Iguazu Falls website.
