Starting point was at the lift station of resort champex. The lift has closed one week ago. Hiking route went along D’arpettes valley. We decided ski down culuoir called Banana. It looked fine from down. We were quite late moving and sun was warming while ascending. Ascending route to top was rounding mountain proceeding from the end of valley straight up to middle ridge going on ski traverse above glacier. Last part was climbing in rocks until mountain top Ridge. The ski down along the Banana was exiting experience. It was steep, at least in beginning.