I know there is no existing trail, and there is a hypothetical future trail shown here:
https://garibaldipark2020.com/maps/custom-maps/mamquam-custom-map
However, is it possible / practical to travel from the new Watersprite Lake Cabin to the Pitt River Hot Springs in one day? Is it doable as a ski tour? Or is it likely possible in the summer only? Any ideas?