Mar 28, 2017 - 2:52 PM
in reply to rshah1
I recommend making reservations when doing to entire Golden Pass route when people ask.
You are now just talking about the Luzern to Interlaken section that isn't serviced by the special panoramic trains and it is has many trains running: so reservations are not needed here.
Other sections of the route, especially Zweisimmen to Montreux, have fewer trains and reservations are good to get here. :)