After getting off the train from the top of Jungfrau, follow the arrow signpost of the word "Tour" and you will see an elevator. The elevator has a height of more than 100 meters to climb to the observation deck. However, on the return trip I went there, I rarely encountered two viewing elevators that were all broken and were trapped on the top for more than an hour and couldn't get down. There are no stairs here, but even if there is, the height of more than 3,500 meters plus the high reverse, it is estimated that you will faint more than 100 meters down. It takes about 20 minutes to get back to the train station from the peak (through the ice cave and crystal house), and the return train time is calculated.