The area is part of the 'Reserva Natural Provincial Hudson', established to protect the unique riparian ecosystem of the Río de la Plata.
The location is recognized by BirdLife International as an Important Bird Area (IBA) due to the presence of species like the Hudson Canastero.
The vegetation is dominated by native Salix humboldtiana (Humboldt's willow) and extensive reed beds.
The riverbank at this location is part of the largest estuary in the world, where the Uruguay and Paraná rivers meet.
The soil composition consists of hydromorphic sediments, which makes the area susceptible to flooding during eastern wind surges known as 'sudestadas'.
Costanera Hudson is a riverside recreational area located along the shores of the Río de la Plata in the Berazategui district. The site features a mix of river beaches, dense willow-lined woods, and interconnected ponds known as the Reserva Natural de Hudson. It serves as a significant stopover for migratory bird species, attracting ornithologists and wildlife enthusiasts. Visitors utilize the area primarily for shoreline fishing, outdoor picnics, and trekking along dirt trails that penetrate the riverside vegetation. The landscape is characterized by its raw, semi-wild state compared to the manicured waterfronts of northern Buenos Aires. The coastal terrain is prone to soil saturation due to its proximity to the estuary's tidal movements. It acts as an important green lung for the southern metropolitan region of Buenos Aires.
The wooden footbridges located within the reserve that offer elevated views of the riverbank and reed beds.
Bring high-quality insect repellent, as the proximity to water and woods creates a high density of mosquitoes.
Wear sturdy, waterproof footwear as the trails can become muddy even days after rainfall.
Carry all waste out with you, as there are limited facilities for trash disposal within the natural reserve areas.
Do not attempt to swim in the river, as currents can be unpredictable and the water quality is frequently unsuitable for bathing.
Access may be restricted during periods of heavy rain or severe 'sudestada' wind events which cause river surges.
No formal dress code; casual outdoor attire and long pants are recommended for protection against thorns and insects.
