This trail, sculpted out of the walls of the Andes was built for a railway that was never completed. As such it’s perfect for someone looking for an incredible XC (cross country) adventure where few have gone before. And we mean very few. On some rides we have seen animals thought to have left the area. Starting in a cloud forest we make our way down to the high jungle following a lush mountain ridge towards the small town of Coroico Viejo in the Yungas Valley. Take breaks to catch your breath only to have it taken again by the stunning views.