>> Also we are deciding between the glacier express or visiting Jungfraujoch. We would like to make this a day trip.
Would you be doing this day trip from Luzern/Lucerne?
First, check travel times for both options, using the Swiss Timetable.
(Use the one on the right with the red SBB logo.)
If you decide to do part of the Glacier Express route from Luzern, you can find information about it on the following page under the heading Don't have time to do the full route?
Reservations on the Glacier Express are mandatory, and August is high season, so the train is likely to be booked out well before your travel date. That means you couldn't wait until the last minute to decide on this option. However, you could travel the same route on regional trains if the Glacier Express was already booked out. Reservations are not needed (or possible) on the regional trains.
>> Is there a point to do both or just one?
Both are memorable and very different experiences. If it were possible, I would include both. Choosing between the two is entirely a matter of personal preference, within the constraints of time and budget.
>> Also when visiting the Jungfraujoch area can we view it by Gondola?
There are no gondolas at the Jungfraujoch. You can only get there by train.
>> We would like to have a gondola view too of the mountains.
Gondolas and cable cars in the Jungfrau Region are:
- Gondola Grindelwald to First
- Gondola Grindelwald Grund to Männlichen
- Cable car Wengen to Männlichen
- Cable car up to the Schilthorn
- Cable car down to Gimmelwald and Stechelberg
Other options for spectacular views include the train from Wilderswil to Schynige Platte, the funicular from Mürren to Allmendhubel and the bus from Grindelwald to the Grosse Scheidegg.
All offer wonderful views. Read the information, look at the pictures and see what appeals to you most in the context of available time and budget. There is a wealth of information to assist you on the MySwissAlps website.