Devil's Throat: Iguazú's 82-Metre Cauldron

The Devil's Throat (Garganta del Diablo) is a U-shaped basalt chasm where 14 separate cascades merge and plunge roughly 82 metres into a permanent cloud of spray. It sits on the Argentine side of Iguazú National Park, about 18 km from Puerto Iguazú town, and average flow runs near 1,500 cubic metres per second — enough that the roar reaches you a full two kilometres before the balcony comes into view.

Nothing else in the park prepares you for the last 200 metres. The river above the falls is wide, slow and almost lake-like, dotted with small green islands, and then the ground simply stops.

Getting There and Setting Your Day Up

From Buenos Aires

Flying is the sane choice. Direct flights from Buenos Aires Aeroparque (AEP) to Puerto Iguazú (IGR) take about 1 hour 45 minutes to 2 hours, and the airport sits only 10 km from the park gate — a 12-minute shuttle ride. The alternative is a 24-hour overnight bus, which some travellers genuinely enjoy and most regret.

Note that Aeroparque and Ezeiza serve different routes; double-check which airport your ticket lists before booking a transfer.

The Train and Boardwalk

Entry to the park is at Ruta 101 Km 142. Walk about 10 minutes from the entrance to the Central Station, then take the eco-train. It has three stops: entrance, Cataratas, and the final Garganta del Diablo station. Trains depart every 30 minutes in normal season and every 15 in summer, and you collect a free timed ticket for your carriage.

The single most useful piece of advice I can give: do not get off at the Cataratas stop on the way in. Ride straight to the terminus, walk the 1,100-metre steel boardwalk over the Upper Iguazú River, and see the Devil's Throat before the tour buses unload. You can double back to the other circuits afterwards.

That boardwalk crossing takes 15 to 20 minutes at an easy pace and is fully flat, which makes it one of the few genuinely accessible highlight walks in South America. Wheelchairs and strollers manage it without trouble.

From the Brazilian Side

Foz do Iguaçu is the base on the Brazilian side, roughly 25 km from the Argentine entrance. Many visitors sleep in Brazil and day-trip across the border — feasible, but expect border formalities to eat 30 to 60 minutes in each direction depending on the hour.

The Viewpoint, the Spray, and What to Expect

The balcony hangs directly above the main drop rather than facing it. You are not looking at the falls; you are standing on top of them, staring down into a horseshoe of black rock where the water turns white and then disappears into mist. The metal railing stops you maybe 15 metres from the lip.

Within 100 metres of the platform you will be soaked — not damped, soaked. Spray rises continuously and drifts with the wind, so there is no sheltered side. Bring a dry bag or a proper waterproof case for your phone; the park regularly deals with visitors who lean over the railings trying to retrieve dropped devices, and crossing the barriers is explicitly prohibited and grounds for expulsion.

Rainbows form in the mist on sunny mornings, most reliably between 8:00 and 10:00. By early afternoon the light flattens and the crowd thickens.

Budget 1.5 to 2 hours for the train, walk, viewing and return. If you linger — and you will — 3 hours disappears easily.

Upper and Lower Circuits

Back at the Cataratas station, the Upper Circuit runs about 1,750 metres along the top of a series of falls and takes roughly 2 hours round trip. The Lower Circuit is shorter but involves stairs and delivers you closer to the water, plus the dock for the boat trips.

If you only have one day, do the Devil's Throat first and the Upper Circuit second. Skip the Lower Circuit without guilt if your legs are done — the Throat is the part you will remember.

The Boat Option

The Great Adventure boat departs from Puerto Macuco after a 4x4 jungle ride and takes you up the canyon toward the base of the falls. You will get wetter than at the balcony, which sounds impossible until it happens. Book in advance during January and February; walk-up spots vanish by 10:00.

Tickets, Timing and Practical Sense

Entry Fees

Foreign adult admission has hovered around ARS 45,000 in recent published rates, with Argentine residents paying considerably less at roughly ARS 15,000 and Misiones province residents around ARS 5,000. Children under 6 enter free. These figures move with inflation — fees are subject to change, so check the official APN site (ventaweb.apn.gob.ar) for current rates before you travel.

Buy online in advance. Tickets are tied to a date, and turning up without a reservation during school holidays is a genuine risk.

Hours and Crowds

Gates open at 8:00 and last entry is around 16:00, with the park closing at 18:00. Arrive at opening. The 10:00 to 14:00 window is when the train queue at Central Station stretches past 45 minutes, and the balcony itself becomes a shuffling line rather than a viewpoint.

High season runs December to February — hot, humid, crowded, and the most dramatic water volumes of the year. The dry months from May to September bring lower flow but clearer views and far thinner crowds. March to May and August to October arguably give the best balance of both.

What to Bring

Quick-dry clothing, waterproof footwear with grip (the boardwalk gets slick), sunblock, insect repellent and a change of shirt. The park is hot year-round and genuinely stifling in January. Do not feed the coatis, however photogenic they are — it is an environmental infraction and they bite.

Drones are banned on both sides of the border. Leave it at the hotel.

Frequently Asked Questions

How long does it take to see the Devil's Throat?

Plan 1.5 to 2 hours from the entrance and back, including the train and the 1,100-metre boardwalk each way. Add another 2 hours if you want to walk the Upper Circuit afterwards.

Is the Devil's Throat better from Argentina or Brazil?

Argentina puts you on top of the drop; Brazil gives you a frontal panoramic view of the whole canyon. If you can only pick one and want the visceral experience, choose Argentina — over 80% of the 275 falls are on that side.

Do I need to book tickets in advance?

Yes, and online only through the official APN reservation portal. Entry is date-specific, and same-day availability is unreliable during January, February and Argentine school holidays.

How wet do you actually get?

Thoroughly wet if the wind is blowing toward the balcony, which is most of the time. Spray reaches 100 metres from the platform, so a waterproof phone pouch and a dry bag matter more than an umbrella, which the wind will destroy.