Harald has been slacklining since 2009 and was one of the founding members of the ISA in 2015. As a passionate and experienced rigger and slackliner, he has helped on several projects within the ISA. In addition to his volunteer work for the ISA, Harald is a founding member of the Austrian Slackline Association and at the moment also President of the Vienna-Slackliners a local slackline association in Austria.