Cost and about one day tour to plank road on Mt. Huashan

Hello, I still got confused by the entrance fee and the possibility of doing a one day tour.

Is it possible if I take the cable car up to the north peak, do the plank walk and back to the starting point again? how much will it cost?

Plank walk is located in the way to the south peak right? means we must do it again in order to go back to the bottom?