carlos06
Hi, it took me a while to figure out but once I got the hang of it it was quite easy.
I emailed kandersteg@bls.ch who were really helpful as this is the station we will be starting our journey from.
They sent me this form which seemed easier than the one on SBB site but books the same school pass.
https://www.bls.ch/de/fahren/fahrausweise/billette/gruppenbillette-kisc
For each step of the journey add another stop with the times you have planned. Doesn’t matter about gaps in travel just put every stop of your day.
We booked three separate days using. On one of the days we are getting the train to Spiez, boat on Thun lake, bus to interlaken and then the train back to Kandersteg.
I must have sent numerous emails to the team at the station and they were so helpful.