Oct 16, 2017 - 7:06 AM
in reply to CarloZaff
It will really depend on how much other travel you are planning on doing while in Switzerland as Rockoyster noted.
If you are staying in Grindelwald and just training to and from Zurich airport (or another airport) you could also look Swiss Transfer Pass as well.
There are several rail passes to look at - have a look through the link from Rockoyster and let us know more details of your travel plans for further help.