Male highliner jumps off a 125 foot highline over lakes in a gap on top of Mammoth Crest, Mammoth, California, United States

30 34 years adrenaline balance barefoot california canyon caucasian ethnicity challenge climbing equipment cloud concentration confidence conquering adversity determination dusk extreme sports forest full length highlining horizontal jumping lake mammoth mountain one mid adult man only one person outdoors risk rock rope side view sky slacklining tightrope usa valley