On Saturday it’s the big day: Helene Fischer appears on the stage at Idalp for the end of season concert. The stage alone is an attraction in itself. It sits enthroned at an altitude of 2 320 metres. It takes a logistical tour de force to create the perfect conditions up in the high mountains for a show that no one who was there will ever forget. Summarized in one minute: how the highest stage in the Alps is put together.