Jul 10, 2014 - 1:15 PM
I'm not entirely sure what you mean by "half day pass" and by your plans for the 30th. The Golden Pass train operates from Lucerne via Interlaken to Montreux, see here.
I would choose between the Swiss Saver Pass and the Swiss Half Fare Card. See the links for their details. Which one is cheaper can only be determined by doing the math as explained in the guide Arno referred to in his first post.
Note that the Swiss Pass offers trips to the Rigi for free, trip to the Jungfraujoch are free until Grindelwald, and 25% off beyond. Further details are here. Also make sure to take advantage of the promotions to save money.
There are no travel costs on October 2 if you stay in an airport hotel with free shuttle service to Zurich airport. Suggestions are listed here.
Last modified on Dec 28, 2014 - 12:55 PM by Arno