Jul 11, 2016 - 4:18 PM
Welcome to MySwissAlps Darren!
The best rail pass depends on all of the trips you will be doing while in Bern, including the transfers to and from Bern. If you want to know exactly you'd best make a list of trips and compare prices as explained here. The Swiss Half Fare Card will in any case save you money if you decide to do the Jungfraujoch trip on your own.
All Swiss Half Fare Card purchase options are listed here. Since you're from the UK you can best visit www.swisstravelsystem. co.uk. After filling out your address, they will show the delivery options. Pick "Online Ticket" from the bottom of the list. They will e-mail the card within a few days (no delivery fees), so you can print it at home. Due to the rate of the pound, I am 99% sure they will increase prices very soon, perhaps even tomorrow. Today, you can still buy a Swiss Half Fare Card for GBP 85.
I wouldn't necessarily say a tour is most convenient for elderly people. Assuming a tour would include a coach ride to Lauterbrunnen or Grindelwald, it would save you one change of trains: if you do it on your own you would need to change in Interlaken Ost. The change is pretty easy by the way. From Lauterbrunnen or Grindelwald, everyone takes the same trains to the top, regardless of how you booked.
A tour has the advantage of not having to prepare for anything. Just show up and follow the guide. Doing it on your own has the advantage of sticking to your own pace during the day. Which option is more comfortable depends on your personal preferences. All about Jungfraujoch, including tours, is explained here: myswissalps.com/ jungfraujoch.
Last modified on Jul 11, 2016 - 4:19 PM by Arno