May 29, 2019 - 1:39 PM
Tickets within Switzerland are normally valid for a route, not one specific train. That's why it's valid for a full day. You could take any train, and also break your trip, as long as you complete the trip within that day. If you don't travel on any of the regional trains, but on the Gotthard Panorama Express, you do need to have the reservation/surcharge as well. Unlike the ticket, the reservation IS for a specific train.
The link I gave you also provides links to buy the reservation online, and an alternative is mentioned in the post you referred to.
Last modified on May 29, 2019 - 1:40 PM by Arno