Colin Glen issues major update on Ireland's first Alpine Coaster and zipline The River Rapid Zipline is 700-metres long with take off from a 25-metre tower Updated Colin Glen Black Bull Run Never miss a thing from Belfast and beyond - sign up for FREE newsletter direct to your inboxInvalid EmailSomething went wrong, please try again later. Subscribe When you subscribe we will use the information you provide to send you these newsletters. Your information will be used in accordance with ourPrivacy Notice. Thank you for subscribingWe have more newslettersShow meSee ourprivacy notice Ireland's first ever Alpine Coaster is on track for completion and launch in the coming weeks.