Hello npayne
When talking about tickets in the Jungfrau area, one must know that public transit tickets in the Jungfrau area are the most expensive of the entire country. Many Swiss have never been to Jungfraujoch as they simply cannot afford the ticket costs to get there, despite the high salaries.
That said, it goes without further saying why any saver offer is not accepted anywhere beyond Grindelwald or Wengen.
The Saver Day Pass is totally fine for travel anywhere in the inhabited area, yet, with very few exceptions, not for mountain excursions.
You have to do maths yourself; if you will spend at total of CHF 240 on ticket costs per person while being in Switzerland, you are break even, and the Swiss Half Fare Card is a good investment. With a return trip to Jungfraujoch, you are not far from spending CHF 240 in total.
Unfortunately, there is no day pass for the area. The Jungfrau travel pass is available for not less than 3 days.
Besides a ride from Wengen to Grindelwald via Kleine Scheidegg, or a visit of Männlichen, Grindelwald First, Schilthorn, or Mürren, there is not much you can do in the area although the views are stunning from anywhere. My personal preference is Winteregg, a possible alternative if you do not want to go to Jungfraujoch.
Since the Jungfraujoch tickets are expensive, do not book them in advance. As a general advice, in Switzerland, you should not book mountain excursion tickets in advance. The weather forecast isn’t relaible for more than two days out. If you go on a bad weather they, you will spend a fortune for zero views; indeed, it will be the most expensive whiteout experience.
Does that make sense?
Let us know if you have further questions.
Greetings to Vancouver; I lived there in 2009 at Alma St during my language stay. Thanks to my stay in Vancouver, I am able to answer your questions in your language now 🙂
Kind regards,
Roland