Costanera Sur Ecological Reserve is an urban green oasis along the Río de la Plata, offering rich biodiversity and serene escape opportunities just minutes from downtown Buenos Aires.
The Costanera Sur Ecological Reserve, located in the Puerto Madero neighborhood of Buenos Aires, Argentina, serves as a vital natural refuge along the city’s waterfront. Spanning approximately 350 hectares (864 acres) of marshland, lagoons, and grasslands, the reserve highlights the ecological significance of the Río de la Plata estuary and its coastal wetlands. Established in 1986, the area preserves native flora and fauna amid one of South America's largest metropolitan areas. Visitors can explore several walking and biking paths that weave through diverse habitats, allowing for exceptional birdwatching experiences—over 300 bird species have been documented, making it a hotspot for ornithologists and nature enthusiasts. The reserve never fails to impress with panoramic views of the city skyline blending seamlessly with natural landscapes. It holds historical importance as the land was reclaimed from former harbor docks and industrial zones, emphasizing urban sustainability and conservation. Key activities include hiking, birdwatching, photography, and environmental education programs at the visitor center. The reserve also protects several endangered species and plays a crucial role in preserving the delicate balance of the riverbank ecosystem. Open year-round, Costanera Sur is a peaceful retreat offering easy access to natural beauty without leaving the city limits, making it a popular destination for locals and tourists alike.
Panoramic views of Buenos Aires skyline across the Río de la Plata
One of the largest urban bird sanctuaries in South America with over 300 species
Trail network weaving through marshes, lagoons, and native grasslands
Interpretive signage and an environmental education center emphasizing wetland conservation
A scenic vantage point offering sweeping views across the sprawling estuary and the port city skyline.
Diverse marshes and lagoons that support numerous aquatic species and migratory birds.
Visitor center featuring exhibits on local ecology, conservation efforts, and interactive learning.