Hi Oriana -
<<"Could you amplify what you mean by "villages." ?
I was thinking that driving would safe us time when traveling from one town to the other, Im sure there are smaller villages but it might take a bit longer to get there. But it seems train might be the best way to go then.">>
I think that means that your travel will be mostly to major cites, and the nearby environs, and not to small country villages. In that case, the value of a car for poking around in the rural areas pretty much disappears. For intercity, you can't beat the convenience of trains...get you right to the center of town, and you don't have to worry about what to do with a car. And, they are frequent. The SBB has been remaking itself as a primarily intercity service, and tries for relatively fast trains -not so many local stops - every half hour between major cities
<<"How is the weather around mid April?">>
Mid April is just the beginning of Spring in the lower altitudes...such a Luzern. Montreux gets a lot of sun ( think vineyards) and will also have a bit earlier Spring.
In the Jungfrau region, the snow is not so good for skiing in many places, so there are few skiers, if any, and the hiking trails are still blocked with snow at higher altitudes. So, in mountain villages such as Mürren, Wengen ( my favorite), Lauterbrunnen, and the more commercial town of Grindelwald, many but not all hotels, restaurants and mountain cable ways are shut down for vacations or maintenance.
Good report about the region:
Check this thread;
Late April to early May is the maximum shutdown period.
The major sight seeing rail road to Kleine Scheidegg, with the branch to the Jungfraujoch runs all year.
Rockoyster suggested Schilthorn. They do maintenance in April, I recall:
<<"Operation hours winter-facilities 2017/2018
Continuous operation: from 16th Dezember 2017 until 22nd April 2018
Weekend operation: (in good snow conditions)
Reduced service: from 3 April 2018
Operation hours winter-facilities 2017/2018">>
Pick a date and check the time table from Mürren to Schilthorn.
Re - Jungfraujoch -
I have traveled to Switzerland about 80 times from the northeastern part of the USA. I have stayed in the Jungfrau Region many times. I like to take easy hikes, and a lot of photographs. I like to look at he Jungfrau - and, even more, the famous Eiger - from a distance. See attached photos. So, as is the case with Rockoyster, the Jungfraujoch excursion has never been worth the cost for me. However, it is for many others.
Since you live in Vancouver, you know what mountains are, which can also influence the values of people who come from places where mountains are scarce.
<<"Maybe 2 night in Geneva and a day trip to Gruyere and Montreux? does that sound feasible?">>
Depends on what time you leave Geneva. If it is an AM flight, you can still catch if from Montreux, but you'll be less nervous if you stay near Geneva. If it is a flight after, say , noon, you can stay in Montreux or anywhere in between with plenty of time and lots of choices of trains to make it the airport with little nervousness.
When I worked in the US, I had job responsibilities very close to Geneva. After one or two looks around the city, I always went elsewhere in my spare time. For me, the rest of Switzerland was more appealing. However, many others have enjoyed Geneva. Some go to see the UN. I won't be as blunt as Rockoyster - those of who live in the USA aren't quite that blunt, although it may seem so to the more genteel Canadians among us - but I'd agree with his recommendation that Geneva is not a prime destination. Some have described it as French city but with a lot with more banks (on every corner).
Gruyere is a bit more easily accessible from Montreux than from Geneva. Hmmnn, I recall some track work on the line in April well above Montreux...buses fill in a 10 km gap.
This thread discusses that partway down:
The timetable will tell you if you test a train ride through that route.
Looks like it would not affect a trip by that route, since it on the stretch between Montbovon and Chateau-d'Oex, so if you go via Montbovon then north to Gruyeres, you ride the most scenic part of the Golden Pass Route, just above Montreux.
The other route (more likely from Geneva, I'd guess) is via Lausanne, Romont, Bulle and a choice of train to either Gruyere or Broc ( chocolate factory tour). Both are near Bulle. You can see both in one day. Cheese and Chocolate!
A good way to visualize the train lines is to use Map.search.ch
If you zoom in to the right degree, the train lines are very clear. And, the menus under "Points of Interest" are quite useful for travel planning.