Reed marsh, riverside woodland and the wide brown Río de la Plata, a short train ride north of the city on the way to Tigre.
North of the city, the suburbs of Vicente López and San Isidro run down to the Río de la Plata, and two small stretches of the shore have been left, or made, wild.
The Ribera Norte reserve, on the riverfront at Acassuso in San Isidro, protects a strip of reed marsh, ponds and riverside woodland with boardwalks and hides. It's a good place for the river's marsh birds and for the ceibo, the coral tree that is Argentina's national flower.
Closer to the city, the Vicente López waterfront has a long riverside promenade with lawns and one of the few sandy spots along the city's stretch of the river.
Both lie on the railway to Tigre, so they make an easy start to a day in the delta.
A morning on the way north.
Take the train from Retiro towards Tigre.
Walk down to the riverside promenade and its lawns.
Continue to Acassuso and the reserve on the shore.
Follow the paths through the marsh to the river.
Rejoin the train for the delta and an afternoon on the water.
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Trains run from Retiro north towards Tigre; use a SUBE card.
Continue to Tigre for the delta launches and the market.
Photographs from Wikimedia Commons under their licences.
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