Hello Zangouvuett33
That’s great to hear. Sow we are looking forward to welcoming you!
No, the trains to Evian are not covered by the STP. The validity of the STP terminates at Annemeasse. However, the boat from Evian to Lausanne is included.
See the STP validity map here:
https://www.mystsnet.com/en/download/area-of-validity-swiss-travel-pass-2024/?wpdmdl=54978&refresh=6555d79c1e61e1700124572
Please note: should you consider making Evian your base (e.g. for economic reasons) that would be a bad idea. It is too remote to visit our country. You would spend a lot of time on “commuting”.
The youth hostel in Interlaken, or any other youth hostel in Switzerland, which all have a high standard, offer great value for individual travelers, even for families.
Get back to us, should you have more travel related questions.
Best regards,
Roland