Reserva Ecológica Costanera Sur

Nature preserve · Puerto Madero

Reserva Ecológica Costanera Sur

Nature preserve · Puerto Madero

3

Av. Dr. Tristán Achával Rodríguez 1550, Cdad. Autónoma de Buenos Aires, Argentina

Photos

Reserva Ecológica Costanera Sur by null
Reserva Ecológica Costanera Sur by MATADOR_NETWORK
Reserva Ecológica Costanera Sur by Photo by Felix Busso
Reserva Ecológica Costanera Sur by Photo by Felix Busso
Reserva Ecológica Costanera Sur by null
Reserva Ecológica Costanera Sur by null
Reserva Ecológica Costanera Sur by null
Reserva Ecológica Costanera Sur by null
Reserva Ecológica Costanera Sur by null
Reserva Ecológica Costanera Sur by null
Reserva Ecológica Costanera Sur by null
Reserva Ecológica Costanera Sur by null
Reserva Ecológica Costanera Sur by null
Reserva Ecológica Costanera Sur by null
Reserva Ecológica Costanera Sur by null
Reserva Ecológica Costanera Sur by null
Reserva Ecológica Costanera Sur by null
Reserva Ecológica Costanera Sur by null
Reserva Ecológica Costanera Sur by null
Reserva Ecológica Costanera Sur by null
Reserva Ecológica Costanera Sur by null
Reserva Ecológica Costanera Sur by null
Reserva Ecológica Costanera Sur by null

Highlights

An 865-acre urban oasis with trails, bike paths, and rich birdlife, offering stunning city and river views just steps from Buenos Aires.  

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Av. Dr. Tristán Achával Rodríguez 1550, Cdad. Autónoma de Buenos Aires, Argentina Get directions

buenosaires.gob.ar

Information

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Av. Dr. Tristán Achával Rodríguez 1550, Cdad. Autónoma de Buenos Aires, Argentina Get directions

buenosaires.gob.ar

Features

wheelchair accessible parking lot
wheelchair accessible entrance

Last updated

Jul 31, 2025

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@matadornetwork

Nature and Parks in Buenos Aires

"Just adjacent to the newest and most expensive neighborhood in Buenos Aires is an 865-acre ecological park. The Costanera Sur reserve is one of the few spots in the city that really embraces the beauty of Río de la Plata, the massive river that hugs Buenos Aires’ coastline. It’s also one of the last remaining green spaces rich with the area’s native flora and fauna, and the single best option for bird watching inside city limits.The reserve has several trails and cycling paths that offer panoramic views of the city landscape, with skyscrapers in the background and native plants in the forefront. It’s also a good spot for a quiet picnic, and an escape from the noise of the city. The ecological park is open every day except Mondays, with free entrance and tours you can book in advance (call ahead to schedule a tour in English). We recommend taking a tour at night on the Friday closest to a full moon." - MATADOR_NETWORK

https://matadornetwork.com/destinations/south-america/argentina/buenos-aires/nature-parks/
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@afar

"The Costanera Sur Ecological Reserve owes its creation to rubble from a highway construction project that was dumped into the river: As nature took over the landfill, new life emerged along the shoreline. Look out over the estuary—that spot on the horizon (on clear days, at least) is Uruguay. Glance back toward the city and admire the urban-rustic juxtaposition of cattails framing sleek steel towers. You could spend all day walking the trails here, so give yourself at least an hour; rent a bike at the main entrance to get around faster. There are free guided tours in Spanish on weekends, plus monthly bird-watching excursions and full-moon nighttime walks. By Travesías"

The Best Things to Do in Buenos Aires
View Postcard for Reserva Ecológica Costanera Sur
@afar

"The Costanera Sur Ecological Reserve owes its creation to rubble from a highway construction project that was dumped into the river: As nature took over the landfill, new life emerged along the shoreline. Look out over the estuary—that spot on the horizon (on clear days, at least) is Uruguay. Glance back toward the city and admire the urban-rustic juxtaposition of cattails framing sleek steel towers. You could spend all day walking the trails here, so give yourself at least an hour; rent a bike at the main entrance to get around faster. There are free guided tours in Spanish on weekends, plus monthly bird-watching excursions and full-moon nighttime walks. By Travesías"

If You Only Have Three Days in Buenos Aires
View Postcard for Reserva Ecológica Costanera Sur

lauren1354

Google
What a beautiful place on the edge of the city. Free entry, two toilet blocks, lots of benches and seating around, I spent hours here! There are turtles, lizards and so many birds. Paths you can cycle or walk down, little walkways to explore and a slightly apocalyptic swamp full of wildlife.

Andy Smith

Google
This is a really lovely park on the edge of the city. It seems to be really popular at weekends. I can see why, there is so much wildlife about, its teeming with birds of different kinds. I spent a few hours walking around the park, including down to the beach, which unfortunately, though popular, is not well kept. The footpaths however are and its easy to walk around the whole park. It’s great to see a nature sanctuary like this that people can enjoy. Well worth a visit.

Terry Rostro

Google
I wanted to do a nature walk in The Reserva Ecológica Costanera Sur while I made an escape from the urban jungle and discover a natural oasis in the heart of Buenos Aires. The Reserva Ecológica Costanera Sur, an 865-acre park along the Río de la Plata, offers a welcome contrast to the city's vibrant energy. This expansive reserve boasts a surprising diversity of flora and fauna. Explore the network of trails and be amazed by the vibrant wildflowers, the towering trees, and the abundance of birdlife. Over 300 bird species have been recorded here, making it a paradise for birdwatchers. Bring your binoculars and observe water fowl, egrets, herons, ducks, and many other fascinating creatures in their natural habitat. Is a great spot if you are a birder and want to take some photos. As I strolled along the winding paths, both locals and tourists engaged in various activities such as walking, jogging, or biking. These well-maintained paths meandered through the park, providing picturesque routes for a serene stroll. Immerse yourself in the tranquility of nature as you explore the reserve. However, be vigilant during warmer months, as mosquitoes and gnats may disturb your peaceful journey. To ensure a comfortable and enchanting stroll, don't forget to bring insect repellent, wear comfortable walking shoes, and carry a water bottle.

Piotr Kalinowski

Google
The park is more attractive to joggers than to people looking for spectacular views. Going there, make sure you have moskito repellent, wear long pants and long sleeves, or run faster than moskitos can fly. They are cruel and plentiful. By the way, there are planty of gates by the concrete passage (the city side) but they are all closed which isn't wise but certainly may be dangerous in some situation. Don't say nobody told you.

a a

Google
Shore was full of dead fish. Few tons I think, so the smell was appropriate. The water itself is yellow. I don't think I can recommend the shore for a visit.

Jesse Kolar

Google
Beautiful natural area close to the city. Only wish it opened earlier because it gets hot by 10am and much of the wildlife is less active after that. Well-maintained trails, beautiful new boardwalks, and great views of Puerto Madero. Oh, and don't go to the river expecting pristine beaches. Haha

Siegfried Wenus

Google
It is mostly a broad gravel road through a area with shrubs. One is not allowed to get off the road. If one does like many locals the beach can be accessed. The beach consists of manly erodet building parts speckled with quite some plastic. Just a few people are wading in the brackish water. On a saturday, lots of people are walkind, running, bicycling and just hanging around in some lawn resting places. Birds are singing, some plants flowering in spring time. Water is available at the entrances and the junction in the middle at the sea. There are also restrooms. The park closes at 1800. When expecting a kind US national park were you can explore nature freely, one will be disappointed. If you just want to get away from builings and traffic it is quite OK.

Ann Ansher

Google
Amazing place to escape from the noisy city. The park is really big and has different paths for hiking, there’s also an exit to the river. You can see different animals and birds. The entrance is free. There are toilets, hot water to recharge your thermos and even WiFi (at the offices).