Jul 1, 2011 - 3:38 AM
Hi Sarah,
These tickets don't sell out (I've never heard of it). They usually just schedule extra trains if there are a lot of travelers. You can get the ticket in Interlaken Ost, but please check their opening times. The timetable shows where to change trains. The train from Kleine Scheidegg to Jungfraujoch also stops two times along the way to take pictures.