Highlining (Slacklining)

Highlining involves walking or performing on a narrow webbing line rigged between anchor points at elevation — sometimes hundreds or thousands of metres above the ground — with only a leash tether to prevent a fatal fall. The sport originated in Yosemite Valley, where climbers began rigging lines between formations in the 1980s. Alexander Schulz free-soloed a 150-metre highline in the Dolomites in 2018 — meaning he walked without a leash at roughly 500 metres above the valley floor. The longest highline ever walked stretched 2,766 metres in the French Alps in 2021, completed by a team of four athletes.