Oct 11, 2018 - 11:41 PM
I'm not sure why you want to cram in the Bernina Express on a trip where you seem to be saying that you are staying in another part of Switzerland.
If you have a car and are only wanting to stay in accomodation in Interlaken, then I humbly suggest you leave the Bernina line for another holiday.
What was it about the Bernina line that you thought was particular?
I ask because if you were, for example, thinking of seeing glaciers, then just driving your hire car from Interlaken across some of the Alpine passes would give you the same sort of scenery, for example there are spectacular glaciers on the Sustenpass, which is only 1 hour's drive from Interlaken