On summer weekends, some Interregio trains of the line IR46 from Lucerne to Erstfeld are prolonged to Göschenen and Airolo, to eliminate the change of trains in Erstfeld. The push-pull train IR 2323 with leading cab car Bt and standard cars type IV, with pushing Re 460 # 085 in the rear, is runing through the Wattinger curve near Wassen.