Reserva Ecológica Costanera Sur

Gazing across the urban expanse of Buenos Aires, did you ever imagine stumbling upon a hidden oasis? This, my friends, is the Reserva Ecológica Costanera Sur. A sprawling 350-hectare sanctuary teeming with life, nestled right in the heart of this bustling metropolis. It’s hard to believe that just beyond the skyscrapers of Puerto Madero lies this tranquil escape, a testament to nature’s resilience. The Reserva Ecológica Costanera Sur wasn’t always a haven for wildlife. In the 1970s, this area was earmarked for an ambitious city expansion project. The plan was to reclaim land from the Rio de la Plata. However, fate had other plans. The project was abandoned, leaving behind a unique landscape of rich sediment. Nature, ever opportunistic, quickly took over. Pampas grass swayed in the newly formed meadows. Alder trees sprung up, forming miniature forests. And the vibrant cockspur coral tree, Argentina’s national flower, added splashes of color to the emerging ecosystem. Today, the Reserva Ecológica Costanera Sur boasts over 2,000 species of flora and fauna. As you wander along the winding paths that encircle the three lagoons, keep your eyes peeled. You might spot a lizard basking in the sun, a turtle leisurely making its way, or a coypu swimming in the tranquil waters. Birdwatchers are in for a treat. Over 340 bird species have been recorded here. It’s not uncommon to spot 50 different species in a single two-hour visit. This avian diversity earned the Reserva Ecológica Costanera Sur recognition as an Important Bird Area by BirdLife International. In 1986, the area was officially declared a nature reserve. And in 2005, it achieved Ramsar status, highlighting its significance as a vital wetland habitat. The Reserva Ecológica Costanera Sur is now a crucial part of the Río de la Plata Eco-route, a 100km circuit connecting various green spaces. This network includes the Paraná River Delta Biosphere, the Ciervo de los Pantanos National Park, and the Pilar Municipal Natural Reserve. Whether you choose to stroll through the park, which takes roughly an hour, or rent a bike near the entrance, the Reserva Ecológica Costanera Sur offers a unique opportunity. It allows you to reconnect with nature, right in the heart of Buenos Aires. A forgotten construction project transformed into a vibrant ecosystem. A testament to the power of nature to reclaim and rejuvenate.