Cataratas del Iguazu, a colossal border waterfall system
Published on 09/07/2026 at 06:39 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWS
Cataratas del Iguazu, known in English as Iguazu Falls, is a vast system of waterfalls where the Iguazu River plunges off a basalt plateau on the border between Argentina and Brazil. Shaped as an elongated horseshoe of water, it forms a curtain of cascades that has become one of South America’s defining natural sights, framed by subtropical forest and reached from Foz do Iguacu and Puerto Iguazu.
A waterfall spread across two countries
Cataratas del Iguazu lies on the Iguazu River, which runs between the Argentine province of Misiones and the Brazilian state of Paraná before meeting the Paraná River further downstream.series of cataracts on the Iguazu River The main line of waterfalls forms a sweeping arc roughly 2.7 km (1.7 miles) long, with numerous rocky and wooded islands breaking the flow into separate drops.2.7 kilometres in total width
Instead of a single vertical wall, the escarpment carries hundreds of individual cataracts along its edge, creating alternating bands of water and forest. The falls are generally described as comprising about 275 separate waterfalls and cascades, varying in height between roughly 60 and 82 m (197 and 269 ft).around 275 individual waterfalls From many viewpoints, the water appears as a broken chain of curtains stepping down through mist, with narrower chutes gathering into broad flumes as the river crosses the rim.
Water, rock and forest in Iguazu National Park
Most of Cataratas del Iguazu is protected within Iguazu National Park on the Argentine side, which is recognised as a World Heritage Site for its combination of waterfalls and subtropical forest.Iguazu National Park World Heritage inscription A sister park, Iguaçu National Park, protects the Brazilian side, so the river and its escarpment are framed by continuous conservation areas on both banks. The falls occupy a semicircular recess in the plateau, creating a natural amphitheatre of water surrounded by dense vegetation.
The underlying rock belongs to the Serra Geral Formation, a stack of basaltic lava flows laid down during the Cretaceous period, roughly 125 to 115 million years ago.basaltic volcanic rocks of the Serra Geral Formation As the Iguazu River cuts across these lava layers, differences in hardness and fracture lines help create the stepped escarpment and islands visible at the rim. The water discharges over this structure at an average rate of around 1,756 mÂł per second, forming spray plumes that rise above the forest canopy.mean annual flow figures
Walkways and the drama of the Devil’s Throat
On the Argentine side, a network of elevated walkways lets visitors approach different parts of Cataratas del Iguazu without disturbing the riverbanks. Metal footbridges extend over calm sections of the Iguazu River, leading to platforms beside and above several of the main cataracts.trails and circuits on the Argentine side Railway-style trains run within the park on the Argentine bank, linking stations close to the main trails and reducing the amount of walking required between circuits.Rainforest Ecological Train route
The most dramatic single feature of the system is the Devil’s Throat, or Garganta del Diablo, a deep horseshoe-shaped chasm at the head of the semicircle. Here, a group of tall cataracts converges into a narrow gorge, with drops reaching around 82 m (269 ft) and immense volumes of water pouring into a confined space.Devil’s Throat dimensions and form A long, level walkway from the Garganta del Diablo station on the Argentine side crosses the upper river to an observation platform that stands directly at the lip of this feature, surrounded by mist and the sound of falling water.walkway to the Devil’s Throat lookout
Visiting Cataratas del Iguazu: what travellers from Western Europe should know
- Cataratas del Iguazu is reached from the twin gateway towns of Foz do Iguacu in Brazil and Puerto Iguazu in Argentina, both located close to the river.
- The main viewpoints on the Argentine side are linked by constructed trails and elevated metal walkways, some of which cross the river to platforms directly above major cataracts.
- Within Iguazu National Park in Argentina, an internal rail service known as the Rainforest Ecological Train connects stations near the main circuits and the Garganta del Diablo walkway.
- The terrain around the falls includes escarpments and forest; several circuits involve substantial walking on footbridges and paths exposed to spray from the waterfalls.
- The official languages are Portuguese in Brazil and Spanish in Argentina, and the currencies are the Brazilian real and the Argentine peso. Entry requirements depend on your nationality; UK travellers can check the FCDO travel advice at gov.uk/foreign-travel-advice, Irish travellers the Department of Foreign Affairs at ireland.ie.
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Frequently asked questions about Cataratas del Iguazu
Where are Cataratas del Iguazu located?
Cataratas del Iguazu spans the Iguazu River at the border between Misiones Province in Argentina and the state of Paraná in Brazil, near Foz do Iguacu and Puerto Iguazu.location between Argentine and Brazilian towns
What should visitors expect on a visit?
Visitors encounter a broad arc of waterfalls divided into many separate cataracts, with constructed trails and elevated walkways giving views from above, beside and directly at the rim of major drops.
What makes Cataratas del Iguazu distinctive among great waterfalls?
The falls stand out for their length of around 2.7 km, their division into hundreds of cataracts, and the dramatic horseshoe chasm of the Devil’s Throat within a protected subtropical forest setting.extent and number of individual cascades
