Iguazu Falls, Brazil side or Argentina side

Iguazu Falls sits on the border of Brazil and Argentina, and each country runs its own national park. The Brazilian side gives a panoramic walk of about 1 to 1.5 km (0.6 to 0.9 mi), a visit of roughly two hours and a full ticket of R$ 134 (about US$26, checked Oct 2026). The Argentine side has more circuits and a 60,000-peso ticket from 1 June 2026, and it takes a full day.

The short answer

See both sides if you can. Brazil gives you the big panorama in a half day, and Argentina puts you close to the water across a full day of walking.

If you have only one day, choose by what you want. Pick Brazil for the wide view, an easy walk and a short visit. Pick Argentina for more trails, closer views and a longer day. Most visitors base in one town and cross the border for the other side.

UNESCO lists the Brazilian park (1986, 169,695.88 hectares) and the Argentine park (1984) as separate World Heritage properties. The falls form a semicircle some 80 m high and 2,700 m across on the Argentine side. On the Brazilian side the system spans nearly 3 km, with drops of up to 80 m. Upriver power plants regulate the water, and the flow changes a lot with rain in the river basin.

Brazil side and Argentina side compared

Getting there

Foz do Iguaçu, on the Brazilian side, has the larger airport and the main long-distance bus station. Puerto Iguazú, on the Argentine side, has its own airport with flights from Buenos Aires.

Brazil side. The park is at BR-469, km 18, in Foz do Iguaçu. Bus line 120, Parque Nacional to the airport, leaves from the Terminal de Transporte Urbano (TTU) in the city center and stops at the airport on the way. Private cars cannot enter the park. The ticket includes a round-trip internal bus of about 12 km (7.5 mi) between the Visitor Center and the start of the Trilha das Cataratas. Parking at the Visitor Center is R$ 65 a day for cars and motorbikes (about US$13, checked Oct 2026), booked online through INDIGO.

Argentina side. Puerto Iguazú is the nearest town, 18 km (11 mi) from the park. Buses run between the Puerto Iguazú bus terminal and the park throughout the day.

Between the sides. The Tancredo Neves bridge links Foz do Iguaçu and Puerto Iguazú and runs 24 hours, outside both parks. Waits range from a few minutes to much longer on weekends and holidays. International buses, taxis and tour transfers cross it. Taxis and transfers are faster, since they wait for you at both border posts.

Check before you go: Bus lines, fares and border paperwork change. Ask at the Foz do Iguaçu or Puerto Iguazú bus terminal desk for the day’s cross-border buses, and confirm Argentina’s entry rules for your passport with the Argentine consulate or the Dirección Nacional de Migraciones. Bring your passport even for a day trip. For Brazilian rules at land crossings, read Brazil land border crossings.

Costs

The Brazilian Integral ticket applies to visitors who are not citizens of Brazil, Argentina, Paraguay, Uruguay or Venezuela. Brazil offers no half price. Prices on the Brazilian side were valid from 19 December 2025.

Foreign visitors to Argentina pay the General rate. Brazilians and Paraguayans pay that rate too. Bring pesos or a card that works in Argentina for the Argentine ticket office and food stalls.

Brazilian tickets are sold online only on Urbia’s official site. You reserve an entry time, not an exit time, and unused tickets are not refunded.

For how park concessions set fees, see national park fees in Brazil.

When to go, and what high water changes

The falls are open all year. The water level, more than the season, decides what you see and which walkways are open.

The Iguaçu River swells with rain in its basin. High water makes the falls louder and wider, and the spray heavier. It can also close the walkways that reach into the river.

In 2026, floods closed the Garganta do Diabo walkways several times:

• Argentina closed its Garganta del Diablo walkway briefly in early July. On 3 August the park operator, Iguazú Argentina, began dismantling it as a precaution against forecast floods. The operator set no reopening date, and one news report said December. The rest of the Argentine park stayed open.
• Brazil closed its footbridge to the Garganta do Diabo on 23 July, when flow reached 8.58 million liters per second, nearly six times the average. It reopened on 24 July. It closed again on 11 October, when flow reached 8.5 million liters per second and was still rising. Flow peaked at 17.7 million on 26 October, the highest of the year, and the railings were removed during the flood. The footbridge reopened on Saturday 31 October at 10:00, after 20 days, with flow down to 6.8 million. The Trilha das Cataratas and its viewpoints stayed open.

Urbia, the concessionaire, starts assessing a closure when flow reaches about 8 million liters per second and is rising. The footbridge reopens after a technical inspection, once flow has fallen to a level it considers safe (6.8 million on 31 October).

Check before you go: Check the Garganta do Diabo status on Urbia’s official channels and the Argentine park’s channels the day before your visit. If the walkways are closed, the main trails on both sides usually stay open and still give strong views.

Summer, from December to March, is hot and humid, with heavy rain and the biggest crowds in January. Winter, from June to August, is mild and drier, with clearer views. Brazilian and Argentine school holidays in July and January fill both towns. For rain and heat by region, see best time to visit Brazil.

Where to base

Foz do Iguaçu is the Brazilian base and Puerto Iguazú the Argentine one. Staying on either side lets you reach both parks.

Foz do Iguaçu is a mid-sized city with a wide range of hotels, shopping and restaurants. It is the better base if you also want to visit the Itaipu dam or Parque das Aves.

Puerto Iguazú is a smaller, quieter town. It suits travelers who want to start early on the Argentine side and walk to restaurants in the evening.

A few hotels sit inside or next to each park. They cost more and let you see the falls before the day crowds arrive. Book through booking sites or direct, and compare prices for your dates, since they rise sharply in holiday periods.

What to do on each side

Brazil. Walk the Trilha das Cataratas, which ends at the Garganta do Diabo footbridge and an elevator to an upper viewpoint. The walk is mostly paved, with stairs and viewing platforms all along the way.

Inside the park, a 9 km (5.6 mi) Poço Preto path runs through Atlantic Forest for walking or cycling, and an 11.6 km (7.2 mi) paved cycle path follows the park road. The park also runs sunrise and sunset visits. Boat trips that take you up to the base of the falls run from inside the park. Expect to get soaked.

Outside the park gate, Parque das Aves is a bird park with large walk-through aviaries. The Itaipu dam, one of the largest hydroelectric plants in the world, runs tours from Foz. At the Marco das Três Fronteiras you can see Brazil, Argentina and Paraguay meet at the river junction.

Argentina. Take the Upper and Lower Circuits, Sendero Verde and Sendero Macuco. The Upper Circuit runs along the top of the falls on metal walkways. The Lower Circuit brings you closer to the base, with spray and rainbows. Sendero Macuco is a forest trail to a smaller waterfall, with a good chance of seeing birds and monkeys.

A small train runs inside the park between the stations. When the Garganta del Diablo walkway is open, it takes you to the edge of the main drop. The park also has the Yvyrá Retá visitor center and Territorio Yaguareté, an exhibit on the jaguar.

Practical tips

• Arrive at opening time. Tour buses fill the trails by late morning.
• Carry a rain jacket or poncho and a waterproof bag for your phone.
• Wear shoes with grip. Walkways get wet from the spray.
• Do not feed the coatis. They bite, and feeding them is banned.
• Carry small notes in both currencies if you visit both sides.

Skip it if

• You can see only one side and want the Garganta do Diabo. Check that the walkway on that side is open before you buy.
• You hate booking ahead. Brazilian tickets are sold online with a reserved entry time.
• You carry a large bag. Brazil’s locker takes items up to 85 x 55 x 65 cm.
• You plan to bring a pet. Animals cannot enter the Brazilian park.
• You dislike crowds. January and July holidays bring long lines on both sides.

For inland parks and wetlands, see the Center-West Brazil travel guide.