Visiting Iguazu Falls: Complete Guide

Iguazu Falls is a system of 275 individual waterfalls spread across a 2.7-kilometre arc on the Iguazu River, on the border between Argentina’s Misiones province and the Brazilian state of Paraná. With an average flow rate of approximately 1,700 cubic metres per second — peaking at over 12,000m³/s during flood periods — they are among the most voluminous waterfalls in the world, and their semi-circular layout produces a scale and immersiveness that photographs consistently fail to convey.

The town of Puerto Iguazú on the Argentine side and Foz do Iguaçu on the Brazilian side are the bases for visiting. The parks themselves are separate, require separate entry fees, and offer fundamentally different visitor experiences.

The Argentine Side

The Argentine side is accessed from Puerto Iguazú, 20 kilometres from the national park entrance. A shuttle bus runs from the park entrance to the internal railway, which connects the three main trail circuits.

Garganta del Diablo (Devil’s Throat): The largest single cataract — approximately 80 metres wide and 80 metres high, horseshoe-shaped, producing a continuous cloud of spray visible from kilometres away. A 1.1-kilometre walkway extends over the river to a viewing platform at the edge. Standing at this platform with the full weight of the falls collapsing into the gorge directly in front of you is the primary experience of the park. The platform gets wet from the spray — bring a waterproof layer and protect camera equipment.

Upper Circuit (Circuito Superior): A 1,700-metre trail above the falls, with views looking down over the top edge of multiple cataracts. Wider perspective, drier conditions. Takes 1–1.5 hours at a comfortable pace.

Lower Circuit (Circuito Inferior): A 1,700-metre trail descending to the base of the main falls. Closer, wetter, and more physically impressive. A small boat service runs to Isla San Martín in the middle of the river during certain water level conditions — the island walk brings you to a second viewpoint with a completely different angle on the falls.

Full circuit timing: Arriving at 8am when the park opens allows the Garganta del Diablo platform before the main tour group buses arrive. By 10–11am the platform is significantly more crowded. Allow a full day for the Argentine side.

Boat Tours and Adventure Activities

Ecological jungle boat: A rigid inflatable boat takes groups upstream to the base of the Garganta del Diablo, providing close-range water-level views of the main falls and ending with a deliberate run under a smaller waterfall. Participants get comprehensively wet — waterproof bags are provided but clothing is not protected. Departs from a dock at the lower circuit area; booking on-site is usually possible.

Jungle trail: A guided walk through the surrounding Iguazu National Park rainforest, away from the falls circuits. The park protects subtropical Atlantic Forest — one of the most biodiverse ecosystems in South America, though heavily fragmented. Coatis (a raccoon-relative, locally called coatí) are common throughout the park and comfortable around people; jaguars are present but essentially never seen by visitors.

Night tour: On full-moon nights and some adjacent nights, a special evening visit to the Garganta del Diablo walkway runs with limited numbers. The falls under moonlight, with the spray visible and the sound amplified by the absence of daytime noise, is a different experience from the daytime visit. Book through the park well in advance.

The Brazilian Side

The Brazilian side is in Foz do Iguaçu, approximately 30 kilometres from the Argentine park via the Tancredo Neves international bridge. Visas and entry requirements depend on nationality — most European and North American passport holders can cross with minimal formality, but check current requirements before the trip.

The Brazilian park runs a single road with shuttle buses stopping at six or seven viewpoints. The key difference from the Argentine side is the panoramic view — you stand back from the falls rather than within them, which allows the full width of the arc to be seen in a single frame. The Garganta do Diabo (same cataract, different vantage point) is the Brazilian-side destination.

The helicopter flights from the Brazilian side over the falls were suspended due to environmental concerns and may be permanently discontinued — check current status before planning for this.

Getting There

From Buenos Aires: Aerolíneas Argentinas and LATAM both fly Buenos Aires to Aeropuerto Internacional Cataratas del Iguazú (IGR) in Puerto Iguazú. Flight time is approximately 1 hour 45 minutes. Direct flights run daily.

From Puerto Iguazú to the park: Local buses and taxis run the 20 kilometres to the park entrance. Most hotels in Puerto Iguazú organise transfers.

Best time to visit: The falls operate year-round. Water volume is highest in the wet season (November–March), when the spectacle is most powerful but the Isla San Martín access may be closed due to high water. The dry season (June–August) has lower volume but cooler temperatures and less rain during the visit. April–May and September–October are comfortable shoulder months with reliable water levels.