Jun 5, 2018 - 1:35 PM
in reply to WillysCrew9
no the return trip is not free.
The route (either direction) between Grindelwald or Wengen to Jungfraujoch is 25% off with the Swiss Travel Pass.
Both directions cost money and you get 25% off both directions.
So the round trip fare I mentioned before is 190chf then minus your 25%. So about 142.50chf for the round trip with a Swiss Travel Pass.