May 23, 2011 - 9:33 AM
For starters: what you are planning here seems a bit much to me for one day. Being at Jungfraujoch can be rather overwhelming, there's the high altitude and if weather is nice you probably want to spend some time there. Of course I don't know how your fysical and/or hiking condition is, but nevertheless.
Wengen-Kleine Scheidegg-Jungfraujoch will take you about 1,5 hours, depending on your time of departure and the connections. If there are many people going up to Jungfraujoch you might have to wait for the next train(s). You can check the time table
if you want.
Hiking to Männlichen and back is doable, although you will hike the same track twice, it will be worth your while because of all the beautiful views.
Walking back to Wengen might be a bit too much. It's a wonderful hike, but rather tiring after all you have done already.
An alternative idea would be: hiking from Kleine Scheidegg to Wengernalp (part of the route to Wengen) and take the train to Wengen from there. You will be so glad that you can sit! :-)
I'm pretty sure one ticket for the whole plan will be available, just ask the train personnel at any manned train station. Purchasing in advance will not be necessary.
Hoping this helps a bit, and whishing you the best weather ever,