Foz do Iguaçu 4-Day Itinerary: Waterfalls, Bird Park and Itaipu

Brazil's Iguaçu National Park gives you the big-picture view of the falls: the Trilha das Cataratas walkway is about 1.2 km, flat, and takes roughly 1 to 1.5 hours at an easy pace, ending on a platform that extends out over the river, close to the Devil's Throat. Your ticket also covers five more trails inside the park, so it's worth setting aside the whole afternoon.

Since the park opens at 9am and stops accepting new entries at 4pm, this visit fits into your arrival afternoon in Foz do Iguaçu without eating into a full day of the itinerary. Bring a light rain jacket or a change of clothes: the spray gets you genuinely wet, especially near the Devil's Throat.

At the end of the Cataratas Trail, past the panoramic viewpoint, a walkway runs out over the river to the foot of Salto Floriano. This is where you stop looking at the falls from a distance and start feeling them: you come out soaked, and that is exactly what people remember afterwards.

Bring a rain poncho or buy one at the entrance, and put your phone in a plastic bag. From the end of the walkway a panoramic lift climbs to Espaço Porto Canoas, where the restaurant and the river deck are and where the shuttle buses leave from. It adds 30 to 40 minutes beyond the trail and closes the Brazilian side without rushing.

Right at the entrance to the Brazilian falls park, Parque das Aves houses over 1,500 birds from 143 species in immersive walk-through aviaries, where you walk among the animals rather than watching from behind glass. It's the right pick for the morning of day two, before the heat builds up, and takes about 2 to 3 hours at a relaxed pace.

The Macuco Safari is how you see the falls from below, at river level, and it is the excursion that appears on every Foz must-do list. It starts inside the National Park with a 2 km ride on an electric vehicle and a further 600 metres on foot through the forest with a guide, and ends in an inflatable boat that runs up the Iguaçu river to the foot of the falls.

It takes about 2 hours in total, of which 25 to 30 minutes are on the water. There is a version that brings you close and a version where the boat goes under the fall itself: on the second you come out soaked, with no exaggeration. Bring a change of clothes; the operator provides a dry bag for your things. The ticket is sold bundled with the falls entrance and runs around 70 dollars.

One planning note: after heavy rain upstream the flow rises and the trip can be suspended for safety. If it is a priority, leave slack in the itinerary to try another day.

The Landmark of the Three Frontiers (Marco das Três Fronteiras) is the only spot in Brazil where you can see Argentina and Paraguay at the same time, separated by the Iguaçu and Paraná rivers. The site was recently revamped with food stalls and cultural performances starting at 6:15pm (Tuesday to Sunday), which makes late afternoon the right time for this stop, closing the day with sunset over three countries.

While the Brazilian side shows you the falls as a whole, the Argentine side puts you inside them: Argentina's Iguazú National Park, in Puerto Iguazú, has its own trail system (Upper and Lower Circuits) and a small eco-train that runs out to the Devil's Throat, the most dramatic single waterfall in the complex, seen almost from above. The park is considerably larger than the Brazilian one and genuinely deserves the whole day, not just an afternoon.

To cross the border, Brazilians need a valid physical ID card (issued within the last 10 years, no digital version) or a valid passport. Argentina doesn't accept documents shown only on a phone screen, so bring the physical one. The crossing is usually quick outside of long holiday weekends, but it's worth leaving Foz do Iguaçu early to catch the Argentine park in morning light, when it also tends to be less crowded.

From the Lower Circuit a free boat, included in the park ticket, crosses to Isla San Martín, an island wedged in among the falls. On the other side a staircase of about 170 steps and short trails lead to viewpoints that exist nowhere else in the park, including the head-on view of Salto San Martín.

It is the part of the Argentine side most visitors skip, because of the stairs and because the boat stops running when the river is high. If it is operating that day, give it an hour: it is the quietest place in the whole park.

Itaipu is the world's largest hydroelectric dam by cumulative power generation, built jointly by Brazil and Paraguay on the Paraná River. The Panoramic Tour, about 1h10, already gives a real sense of the dam's scale, with a stop at the overlook facing the spillway. If you have more time and technical curiosity, the more in-depth Special Circuit goes inside the plant's structure.

Since Itaipu sits about 12 km from downtown Foz do Iguaçu, this tends to be the itinerary's last stop before the flight home, closing out the 4 days somewhere between nature and engineering.

Fifteen minutes by car from Itaipu, and on the way back to town, the Chen Tien Buddhist Temple is the least obvious attraction in Foz and one of the most photogenic. There are 120 two-metre statues lined up through the garden, a seven-metre Amitabha Buddha and a pavilion looking over the Itaipu reservoir.

Entry is free, the visit takes 40 minutes and there is no queue. Wear something covering shoulders and knees, take your shoes off before entering the pavilion, and avoid midday, because the walk through the garden is entirely in open sun.