Where are secret courses in we ski and snowboard

There is a yeti trail and a dragon trail. To get to the yeti trail, ski down Giant's realm and stay to the right side. Eventually, you will find a big hole. Go down it. That is the yeti trail. To get to the secret dragon trail, go to the top of Mt.Angrio. There turn around and ski down until you get to a big arch.Turn left at the arch. Keep going down,and stay to the right side. There will be a quick turn in the trail. Those are the secret courses in Mt.Angrio.