Jun 4, 2015 - 5:43 AM
Hi tweetyr78, and welcome to MySwissAlps!
I think your plan is fine. The Centovalli Line takes 2 hours, but the entire trip from Geneva to Locarno is about 5 hours of traveling. I guess the Centovalli line might be fun for the 8 year old if he/she is still interested after the train ride to get there ;-) Traveling might be tiresome for the two youngest, but that's more of a general issue and not so much related to the Centovalli line.
As for rail passes: just Geneva via Domodossola and Locarno to Chiasso (Swiss border) is not enough to make a pass worth it. But, depending on your plans in Prangins (day trips, etc.), Swiss Half Fare Cards could be worth it. You need two for the adults. The 8-year old travels for free with the free Swiss Family Card you can order along. The 3 and 2 year old travel for free in any case. If you decide to buy regular tickets, then buy a Junior travelcard for the 8-year old.
Last modified on Jun 4, 2015 - 5:45 AM by Annika