German slackliners set world record walking between hot air balloons at 2.5 km altitude. Watch Hindustan TimesWatch: German Slackliners Walk Between Hot Air Balloons At 2.5 Km Altitude To Set New World Record News18German slackliners balance between hot air balloons to set a new world record at 2,500 meters above sky. Watch here The Indian ExpressWhoa! German slackliners set new world record in epic fashion Alaska’s News SourceSlackliners Set New Record Walking Between Hot Air Balloons 820 Feet in Air Inside Edition