I hope I didn't miss anything about it.
One of my favorite walks is walking in Lauterbrunnen Valley once you get past the town and the crowds at staubbach falls. There’s just something about the rocky cliffs and all the waterfalls.
Here’s a good video if anyone is curious about Lauterbrunnen:
https://www.youtube.com/watch?v=GI3IH6KJjFY
Everyone likes different things. I certainly never expected to fall in love with Switzerland, but I did.
khysky if you're still looking for a rainy day option, Bern i think would be a good choice. It's not a favorite of mine, but i am definitely in the minority. I just prefer those waterfalls. :-)