Iguazu National Park and the surrounding Parana rainforest form one of Argentina's most biodiverse ecosystems, protecting 67,720 hectares of subtropical rainforest (lat -25.6800, lng -54.4400). This remnant of the interior Atlantic Forest harbours extraordinary fauna: over 450 bird species (including 5 toucan species), 80 mammal species (including the jaguar, the Americas' largest feline), 1,500 butterfly species, and over 250 fish species. From the omnipresent coatis walking among tourists to the elusive jaguar deep in the forest, this guide details where and when to see each animal.
Getting there — distances & times
| From | Distance | Flight | Bus | Drive |
|---|---|---|---|---|
| New York (JFK) | 8700 km | 10 h + 2 h layover | — | — |
| Madrid (MAD) | 10300 km | 13 h + 2 h layover | — | — |
| Buenos Aires (EZE) | 1300 km | 1 h 45 | 18 h | 15 h |
| São Paulo (GRU) | 950 km | 1 h 40 | 16 h | 14 h |
| Córdoba | 1100 km | 1 h 30 | 16 h | 14 h |
Month-by-month climate
| Month | Temp. | Rain | Crowds | Note |
|---|---|---|---|---|
| Jan | 22° / 33°C | 170 mm | Humid summer | |
| Feb | 22° / 32°C | 160 mm | ||
| Mar | 21° / 31°C | 155 mm | ||
| Apr | 18° / 28°C | 160 mm | Mild, ideal | |
| May | 14° / 25°C | 125 mm | ||
| Jun | 12° / 22°C | 110 mm | ||
| Jul | 11° / 23°C | 85 mm | Winter break | |
| Aug | 13° / 25°C | 90 mm | ||
| Sep | 14° / 26°C | 130 mm | Clear skies | |
| Oct | 17° / 28°C | 160 mm | ||
| Nov | 19° / 30°C | 155 mm | ||
| Dec | 21° / 32°C | 170 mm |
Wildlife Spotting Locations
Inside the National Park
The falls circuits (Upper, Lower and Devil's Throat) offer casual sightings of coatis, monkeys, lizards, butterflies and birds. For focused wildlife watching, the Macuco Trail (7 km round trip, 3-4 hours) is the best fauna trail.
Guira Oga Bird Centre
A bird rescue and rehabilitation centre 5 km from Puerto Iguazu. See toucans, eagles, owls and parrots up close. 1.5-hour guided visits. Entry: USD 10-15.
Animal Guide
Coatis (Nasua nasua)
The most visible animals in the park. Walk in family groups along trails. Important: do not feed them (USD 100 fine), keep 2 metres distance, they have sharp claws and can bite.
Toucans (5 Species)
Iguazu has 5 toucan species: the toco toucan (largest, 20 cm orange beak), green-billed toucan, saffron toucanet, chestnut-eared aracari and lettered aracari. Best seen at dawn and dusk in the Macuco Trail area.
Butterflies (1,500+ Species)
The region has Argentina's highest concentration of butterfly species. The blue morpho (15 cm wingspan, iridescent metallic blue) is the star. Most active 10:00-15:00 in sunny trail areas.
Jaguar (Panthera onca)
The jaguar (yaguarete) inhabits the park but seeing one is extremely rare (less than 0.1% of visitors). They are nocturnal and elusive. An estimated 80-100 individuals live in the entire Misiones forest.
Best Times for Wildlife
- Dawn (6:00-8:00): Best for birds, howler monkeys and mammals. Macuco Trail at dawn is the definitive Iguazu wildlife experience.
- Mid-morning (10:00-12:00): Butterflies at peak activity. Coatis active on circuits. Lizards sunbathing.
- Dusk (16:00-18:00): Second peak of bird activity. Toucans flying to roosts. Frogs and toads begin calling.
