In 2024, German slackliner Friedi Kühne broke the world record for the highest highline walk. With a parachute strapped to his back, he walked between two tethered hot air balloons floating 8,200 feet ...
A fatal helicopter crash southeast of Phoenix involved a slackline, also known as a highline, which investigators say the aircraft struck before plunging into a canyon. The crash occurred Jan. 2 in ...
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