Swiss Rail Question

Hello coley1916. In all, I think a Swiss Saver Pass would be the most comfortable solution. Its validity should start once you reach Interlaken, since your first trip is made by car. The trips you mention are all covered, and the major transfers Lauterbrunnen-Zermatt, Zermatt-Lucerne and Lucerne-Zurich are for free, including the Glacier Express. You'll only have to pay an extra fee for Glacier Express seat reservations. Further details (including the map I mentioned in my answer to your other question) can be found at the Swiss Pass page. By the way, you could also choose to travel from Geneva to Interlaken by train, using the beautiful Golden Pass route. In that case your Swiss Saver Pass should already be valid for this first trip.

There are other passes for the Jungfrau region (such as the Regional-Pass Bernese Oberland), but they're not suitable for your trip, since they're not valid for the other parts of the country you want to cover. On each detail page of the rail passes we list, specifics and maps (showing discounts in that specific region too) are included.

Yes, you can get off the Glacier Express in Chur and then travel onto Lucerne.