If the average zip lining experience seems a little too tame, then Zip World Velocity is ready for you to kick it up a notch. Located in Wales, ZWV boasts to have the longest and fastest zipline in Europe, and they live up to it. After takeoff, zipliners will plummet 500 feet over a rock quarry at 100mph. If flying has ever been your dream, Zip World Velocity will make it happen.