I'm traveling to Switzerland next week with my wife and two teenagers. Current itinerary is day 1 Zurich, day 2 Luzern, days 3-5 Lauterbrunnen Valley, day 6 ??, day 7 morning flight home from Zurich.
I'm struggling a bit with how to program day 6. We will be waking up in Muerren. Options I'm considering are (a) Bern; (b) Bern + Murten (sleep in Murten); (c) Bern + Lausanne (sleep in Lausanne); (d) something else?? From what I've read it seems like we could hit the Bern highlights in half a day, if so it seems like might be worth trying to see something else. But I'm worried that Murten will be a bit boring and that Lausanne is too far away given the other traveling we'd be doing that day (Muerren to Bern in the morning) (All else equal I'd also prefer to reduce travel time to Zurich airport the following morning, but I don't feel super strongly about that).
I'd really appreciate any suggestions. Thanks!!