Oct 13, 2019 - 4:26 PM
in reply to Suzanne
Hi Suzanne -
If they take a day trip to Interlaken from any of the locations mentioned so far, they'll have quite a long day if they partake of evening activities. Certainly possible, of course.
For example, a trip from Interlaken Ost to Zürich takes 2 hours, at 2000, 2100, 2200, connecting through Bern.
If they connect through Luzern, the trip takes almost 3 hours.
Add time to get to/from the station at each end.