Watch the Reversing Falls Rapids’ waves and whirlpools churn below your feet at the Saint John Adventures Zipline. This adrenaline-pumping course is a safe but exciting way to see this amazing phenomenon. Experienced guides provide full safety briefings, while helping you into a full body harness and helmet. Accompanied by two tour guides, you’ll zip along the course – five lines in all – at 40km/hr. Your journey can include the Signature Zip, a line stretching 670 feet across the water, or even competitive zipping along our dual zipline. By reservation only.