We are heading into Italy from Switzerland in September, and I am doing a little advance planning. We are moving to Locarno from Bettmeralp on the way, and have a choice of routes—-the Glacier Express route (not the named train) plus Treno Gottardo, or the train from Brig to Domodossola and Centovalli Railway from there. This one would be new to us so I am leaning in that direction.
We will be using Saver Day Passes for the flexibility, so we can decide later. But I see on SBB that reservations are required for the Centovalli Railway. So looking at the options, I see 3 different train types running, depending on time of travel: Internazionale, Panoramico (only once a day around 10:30 am and we probably cannot make this one) and Centovalli Express.
Does anyone know what is the difference? We will be traveling 2d class.