Spectacular highline opposite Cerro Torre in Fitz Roy massif in Patagonia

Within a four-day weather window, the team ultimately managed to reach the summit and successfully complete the rigging and crossing of the 90m long highline in a single day. Following Lukas Irmler, both Antonia Rüede-Passul and the Argentinian Leonardo Ferrari also achieved a clean crossing in front of the cloudless backdrop of Cerro Torre.

To achieve this historic crossing, the highliners first had to climb the summit of Aguja de la S via the route Cara Este (6a/450m), carrying an additional 18kg of gear to just below the summit. Just over a week earlier, Antonia and Lukas had stood on the summit for the first time to scout the route and find potential anchors for a highline.

On the day of the first crossing, the weather was perfect with almost no wind—an extremely rare occurrence for the storm-swept mountains of Patagonia.

Irmler and Rüede-Passul had previously spent more than three weeks in El Chaltén preparing for the highline project and exploring various targets. With Aguja de la S, the highliners chose one of the smaller peaks in the Fitz Roy range because the mountain promised a very good spot near the summit and offered a magnificent view of Cerro Torre. "There are numerous other, even crazier ideas, but those will likely have to wait for the coming season," says Irmler. The German couple definitely plans to return in the future.

Name: "Highline de la S"
Location: Just below the main summit of Aguja de la S across to the south summit
Length: 90m
Elevation: Approx. 2,300m above sea level
First Ascent/Crossing: March 6, 2026, by Lukas Irmler, Antonia Rüede-Passul, Leonardo Ferrari, and Miquel Sixto, with support from Mariona Amengual.