Distance from downtown Buenos Aires: 160 km (100 miles).
Heading south along the Río de la Plata, you get to flat country with a mix of native grassland, mudflats and marshes which has suffered littlte change despite the widespread agricultural development of the pampas.
There are good chances for pampas typical birds like Spotted Nothura, Great Pampas Finch, Field Flicker, Firewood Gatherer, Brown and Yellow Blackbirds, Grassland Yellow Finch and also possibly the scarce grassland specialities Hudson’s Canastero, Bay capped Wren Spinetail, Gras Wren and the rare South American Painted Snipe. Mudflats offer habitat for waders (Hudsonian Godwit, White Rumped and Pectoral Sandpiper, Two Banded Plover), Snowy Crowned and Gull Billed terns, Black Hooded and Gray Headed Gulls. With marked changes in numbers, mostly related to rainfalls, waterfowl can be very diverse in ducks and teals, swans, coots, grebes, herons, ibises, spoonbilds, storks, etc.