AT A GLANCE
Why go?
Chorvátske rameno — the "Croatian Arm" — is a 5-kilometre waterway threading the heart of Petržalka, Bratislava's vast concrete housing estate. A former meandering arm of the Danube turned regulated drainage channel, today it runs as a green and reedy spine between the panelák blocks, lined with paths and alive with herons, swans and beaver. Locals call it simply Kanál.↗↗
The whole length is followed by an asphalt cycle and walking route that joins the Danube cycle path, with anglers on the banks, swimmers nearby at Lake Veľký Draždiak, and four new footbridges under construction to knit the two shores together. It is an easy, free, year-round outdoor stop that shows a quietly natural side of a district usually remembered for its blocks.↗↗
A lost Danube arm down the middle of Petržalka
Walk the banks and you are standing in the ghost of a river. In the Middle Ages Chorvátske rameno — recorded in older maps by German names like Engerauer Arm and Carlburger Arm — was, after the Pečaň branch, the largest of the great meanders on the Danube's right bank, looping across the land that is now Petržalka and cutting it into islands and peninsulas. It had been shrinking for centuries: a 1753 survey still logged it at 5.8 kilometres long and up to 200–300 metres wide, before flood works in the late 18th century starved its flow and the channel silted and largely dried by the 19th.