- Where
- Corrientes Province,
northeast Argentina - Coordinates
- 28.53° S
57.17° W - Biome
- Subtropical freshwater
marsh & grassland - The park
- Iberá National Park, 2018;
Gran Iberá c. 700,000+ ha - The return
- Wild jaguars again
from January 2021 - Best visited
- April–October
Shining waters, correctly named. The capybaras have the composure of furniture and the jaguars are back after a long time away, which everyone here mentions with a straight back. I watched the marsh all afternoon and the marsh watched me back, blinking occasionally, in several species.
The short answer
The Iberá Wetlands sprawl across Corrientes Province in northeast Argentina — a mosaic of marsh, lagoon and floating vegetation whose Guaraní name, y berá, means shining waters, and which ranks among South America's largest freshwater wetlands, second regionally only to the Pantanal. Iberá National Park was created in 2018 on land donated through Tompkins Conservation, joining the provincial park to form the vast Gran Iberá. It is the world's most watched rewilding project: in January 2021, jaguars walked free here for the first time in seventy years.
Why it's worth knowing
Most conservation defends what remains. Iberá set out to restore what was gone — a full roster of locally extinct animals returned deliberately, in sequence, since 2007: giant anteaters first, then pampas deer, collared peccaries, bare-faced curassows, red-and-green macaws to carry seeds, giant river otters back from national extinction, and finally the apex of the system, the jaguar.
For the traveller, the result is South America's most generous accessible wildlife: capybaras in unbothered herds, marsh deer belly-deep in the lagoons, caimans stacked on the banks, storks and screamers everywhere — and a local economy, in the small gateway villages, remade around showing it all off rather than hunting it.
The field notes
How you un-extinct a marsh
The method is patient and unglamorous: source animals from zoos and wild populations abroad, breed and prepare them in large enclosures inside the wetland, and release only when they can hunt, forage and raise young unaided. The jaguar programme's breeding centre on San Alonso did exactly this for years before any gate opened. Each species returned is chosen for the job it does — predators to regulate, macaws to plant, otters to govern the waterways.
The capybara standard
The everyday spectacle belongs to the capybaras — the world's largest rodents, grazing in placid family groups along every causeway and lodge lawn, radiating the composure of animals that have never been anyone's problem. They are also, not incidentally, what the returning jaguars eat, which makes their abundance the quiet foundation of the whole restoration.
Shining waters, slowly
Iberá is experienced by boat, horse, bicycle and boardwalk out of gateway villages, principally Colonia Carlos Pellegrini on Laguna Iberá — drifting channels between floating islands at first light, when the mist lifts off the water and the marsh sounds like an orchestra tuning. It is slow travel by design, in a place that measures success in decades.
- Drift the lagoon at first light and let the birds do the talking.
- Nod to a capybara and receive nothing. Correct.
- Hear how the missing animals were brought home, from someone who helped.
- Watch for the deer standing belly-deep, exactly where deer should be again.
- Come back as the neighbours keep returning. (The list approves of comebacks.)
A jaguar track in the mud. A fresh pugmark on a marsh trail is, in this particular place, more than a footprint: it is the physical signature of an animal whose kind was absent for seventy years and walks here again because people decided it should. Guides point them out the way other places point out monuments.
Tally, in the marginA footprint the whole marsh waited for — the best item anyone here ever checked off.
Getting there
The classic base is Colonia Carlos Pellegrini, a small grid of sandy streets beside Laguna Iberá, reached by road transfer from the city of Corrientes or from Mercedes — the last stretch unpaved, part of the experience. Posada lodges there run the boat excursions, night walks and horseback outings that structure a stay; two to four nights suits most visits.
The cooler months from April to October bring comfortable temperatures and concentrated wildlife; summer is hot, buggy and green. Book lodges ahead in the dry season, carry insect repellent in all seasons, and take the dawn boat every day it is offered — the marsh does its best work before breakfast.
Common questions
What are the Ibera Wetlands?
The Ibera Wetlands are a vast freshwater marsh system in Corrientes Province, northeast Argentina - the Guarani name means 'shining waters' - ranking among South America's largest wetlands, second regionally to the Pantanal. Ibera National Park, created in 2018, joins the provincial park to form the Gran Ibera.
When did jaguars return to Ibera?
In January 2021, a female jaguar named Mariua and her two cubs, Karai and Pora, were released from the breeding centre on San Alonso island - the first jaguars living free in the Ibera Wetlands in seventy years. Further releases followed, restoring the ecosystem's top predator.
What animals have been reintroduced at Ibera?
Since 2007 the rewilding programme has returned giant anteaters, pampas deer, collared peccaries, bare-faced curassows, red-and-green macaws, giant river otters - back from national extinction in Argentina - and jaguars. Each species was selected for its ecological role, from seed dispersal to predation.
Who created Ibera National Park?
Ibera National Park was established by Argentina's Congress in 2018 on land donated by Douglas and Kristine Tompkins through Tompkins Conservation, in collaboration with Corrientes Province and national authorities. The rewilding work is led by Fundacion Rewilding Argentina, the foundation that grew from their conservation projects.
What wildlife can you see at Ibera?
Capybaras graze in herds throughout the gateway villages, with marsh deer, caimans, howler monkeys, giant anteaters and a spectacular bird list from jabiru storks to screamers seen on ordinary excursions. Jaguars and giant otters remain rare sightings - their presence, rather than their visibility, is the point.
How do you visit the Ibera Wetlands?
The main base is Colonia Carlos Pellegrini on Laguna Ibera, reached by road transfer from Corrientes or Mercedes, with the final stretch unpaved. Lodges there arrange the boat trips, night walks and horseback excursions; the cooler months from April to October are the comfortable season.