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Exchange in Foz do Iguaçu and Border Areas in Brazil: what actually matters to know

Short answer
Avoid exchanging currency at airports, as city centers and Shopping Paris in Paraguay offer significantly better rates. When exchanging USD, prefer newer blue-series bills, although some exchange offices in Paraguay may accept older bills at competitive rates.

From real experience

When traveling to Iguazú Falls via Puerto Iguazú Airport, money exchange is possible en route to the Brazilian side of the falls.
There are numerous exchange offices available in the city, including within the Palladium shopping center. Exercise caution with unsolicited private messages offering exchange services, as these may be scams. Official administrators do not initiate private contact for recommendations or services.
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Currency exchange rates in Brazilian airports are significantly worse than in city centers (e.g., 4.2 vs 5.3 BRL/USD).
When exchanging USD, newer bills (blue series) fetch a better rate than older green ones. Near Foz do Iguaçu, crossing to Paraguay (Shopping Paris) often provides better exchange rates.
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Iguazu Falls visit: Brazilian side requires 3-4 hours; Argentine side is significantly larger and requires a full day.
Approximate costs: Brazilian side entrance ~117 BRL, Argentine side package (entry + boat + snacks) ~100 USD. Best exchange rates for Argentine Pesos are found outside the national park zone.
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At Iguazu Falls, on the Brazilian side, there is a currency exchange office located in a supermarket near the bus station.
Travelers have reported that this exchange office offers a decent rate, making it a convenient option for exchanging currency upon arrival if you are heading directly to Iguazu.
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At the Shopping Paris in Paraguay, near the bridge from Foz do Iguaçu (Brazil), an exchange office accepted older 100 USD bills (from 2006) at a favorable rate of 5.5 BRL, matching the rate for newer bills.
Street exchanges offered lower rates for old bills.
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Information is needed regarding the earliest time and location for currency exchange in Foz do Iguaçu to purchase bus tickets for travel to the Argentinian side of Iguazu Falls.
This exchange is necessary for bus ticket purchase.
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Related topics

• Obtaining and Using a CPF 💰 Banking for Tourists and Non-Residents 🛂 Extending Tourist Visa-Free Stays 💼 Getting a Tax ID (CPF) 🛂 Entry Documentation 🎟 Return Ticket Requirements

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