A newly opened attraction in addo adrenalin addo is proud to present the longest double zipline in south africa fast fun and safe this exhilarating ride begins from a vantage point 60 metres above the sundays river overlooking a valley of citrus fields for those brave enough to take that initial launch 500 metre twin ziplines fly two riders over the river at up to 60 kmh an automatic breaking system at the end of the zipline means you do nothing but enjoy the ride and if the zipline wh