TEHRAN, Young Journalists Club (YJC) - The men and women simultaneously leaped off the 30-meter-high bridge and swayed like pendulum until coming to standstill. According to the organizers, a total of 20-kilometers of rope and 1000 harnesses were used. The Guinness World Records has not yet issued an official statement confirming the Brazilian record attempt. But the group unofficially broke the previous record of a mass jump involving 149 participants, back in April 2016. The previous record was made at the same place.