highest elevateiton highline with harness

in 1999, Stephan Siegrist featured in Eiger live a live 30- hr  broadcast  on Swiss tv  that  followed a climbing team's  successful  ascent of the north  face of  the Eiger. Stephan Siegrist  (CHE) walled 21 m-long  hihghline on  Mount Kilimanjaro in Tanzania at an altitude of  5,700m (18,700 ft ) on 29, jun 2016 ,The  low Oxygen content of  the air at such high altitude make it even  harder to  ward off dizziness and maintain balance  while the unexpected snow on kilmanjaro  only increased the difficulty of siegrist,s   record  attempts form called guinness world records