I wanna ask how to use my swiss travel pass 8-days to purchase a free train travel from zermatt to basel on 19/12/2017 ??
I have try to practice the booking by changing the date on 20/10/2017 (as the train ticket on 19/12/2017 not yet in advance sale list), and i realized that i unable to search for swiss travel pass in the discount box (only found half-fare travel card/GA travel/ junior card)
If i'm not mistaken, the swiss travel pass did cover the entire route (free transportation) from zermatt to basel. I did some reserch on some forum about how to use the pass. It said Swiss travel pass holder just board and show the pass (printed version) to the train controller for validated purpose only (no need the purchase any ticket)
Please kindly explain if any wrong to me.