Here you can download a map where you can see the validity of Interrail/Eurail in Switzerland.
https://www.myswissalps.com/eurailglobalpass/validity
When?
Seats on €* in main/hi-season re in very short supply and must e REServed asap.
Do NOT try to reserve via app-will only lead to problems-use other means, in your case best to call SNCF directly.
NOte: REServ over border cost quite high-can make this much lower to only last stop in FRance, then change to local trains. In Swiss no RES needed.Unless the USA style ´time is money´ applies for your+party
For last ti IT: do this at any swiss counter shortly after aerival
The advice from the experienced travellers in the community is to use other ways to make reservations than the Interrail/Eurail website.
You can look at the guide in the link:
https://community.eurail.com/train-connections-reservations-47/how-to-get-reservations-105
If you, after having looked at the guide, have questions about how to make specific reservation, please give your travel details (departure date, time and route) preferably in a new topic, and you will get advice.
