Should I do Grindelwald or Lauterbrunnen from Interlaken? Can I do
both?
Yes, you can definitely do both. They’re close enough that it’s feasible to visit each in a day if you're based in Interlaken. To check train routes and schedules, use SBB.ch or download the SBB app.
Just keep in mind that there’s a lot to see in this region, and two days is quite short. That said, even after living in the Berner Oberland for many years, I still haven’t seen everything on my list. It’s all stunning—you really can’t go wrong.
Considering I’m doing Matterhorn—will the experiences be too similar?
Not at all. While both regions have mountains, the overall feel, scenery, and experiences are quite different. Zermatt (Matterhorn) has a very distinct vibe compared to Lauterbrunnen or Grindelwald, so you’ll be getting a good variety.
I’m taking a 4-day Swiss Pass—I don't mind taking a short trip to
nearby villages. What options do I have?
With limited time, you may not be able to add much more, but a few nearby spots are definitely worth considering. From Lauterbrunnen, you can take easy trips up to Wengen or Mürren. Brienz is another nice option, and a boat ride on Lake Brienz can be a lovely, especially with a stop at Giessbach Falls. What’s realistic will also depend on the time of year you're visiting and how packed your days already are. You can also make choices depending on the weather - mountains on clear days, lake and waterfall when it is rainy and/or the mountains are not visible.