Welcome to My Swiss Alps! You will find your travel in Switzerland on public transport to be an amazing and pleasing experience.
1960man's encyclopedic knowledge of the Swiss Transport System is legendary among the members of this forum. He has provided many tips that have been useful for me. His example of the connectivity is very good.
I can add a few things to his posts that may point you to additional help that is particularly suitable for novices:
and, in particular, the sub-link:
The timetable is a wonderful tool....see some useful tips that are definitely worth a careful read on how to use it here:
Once you have learned the tricks, you can go directly to this website:
All kinds of useful stuff at that site buried in layers and of information.
When I am planning a trip, I find a map to be extremely helpful. Actually, necessary. Some use Google Maps, and I find it useful, particularly for facilities near a particular location. But my preference for planning train travel in Switzerland is to use this map:
There are a few reasons:
If you zoom in far enough..to zoom level 32 ( last number in the URL) the train lines are very clear, as are mountain transport facilities.
In the menu, under "Points of Interest" ( the circle with a star)/Traffic you can turn on icons for various transport modes:
map.search.ch/?pos=641623,163584&z=32 &poi=bergbahn,halteste lle,mobility,zug
If you zoom in a bit to make them more clear, then mouse over or click on an icon, you get more information. One item is very useful. It give the exact official name of the station or stop. You can then use that in the timetable to pinpoint exact travel destinations or starting points...even bus stops in cities.
In the simplest terms, open the timetable, enter your starting point - Zürich, Zürich HB or Zürich Hbf (main station, Hauptbahnof) and your destination - Grindelwald. (Watch the spelling).
You will get the fastest route, at various times.
Click on one of the route lines with small circles shown.
The entire route details open up. You can see platform numbers, etc. Look that page over carefully. There is a lot available.
Scroll way down and you have choice of maps of the start and finish stations.
That's a start.
Let us know if you have more questions