Africa - World record on Kilimanjaro – Stephan Siegrist walks the world’s highest highline The Swiss professional alpinist and Mammut Pro Team athlete Stephan Siegrist realized an extraordinary balancing act in the summit region of Kilimanjaro. He set a world record by walking a highline at 5,700 meters above sea level. The highline, which is a good 20-m long and stretches between two rock towers on Kilimanjaro, is where Siegrist achieved a new record at 5,700 m above sea level: no-one ha...