We bought the 4 Days Swiss Travel Pass from Sun 23rd Sept to Wed 26th Sept 2018.
After overnight stay in Zermatt on Tue 25th 2018 , the next morning of Wed 26th Sept.we intend to take the train to Gornegrat for sightseeing Matterhorn. After sightseeing, we come back to Zermatt to check out of our hotel.
Which train do we use to travel from Zermatt to Montreux ( using our Swiss Travel Pass ) ?
Thanking you for your advice and suggestions !