We will be in Wengen this year Sept 8-18. I've heard conflicting info about whether advance tickets and seat reservations are needed on the train to the Jungfraujoch during this time. Will there still be crowds at each station during this month?
Can we wait until we know the weather and reserve the night before or morning? If we catch the train at Kleine Scheidigg after hiking down from Mannlichen, does that save very much of the fare? We have the Swiss Half Fare for the Jungfraujoch and the BOP for Mannlichen. Thank you!