Jun 22, 2011 - 5:41 AM
The train from Kleine Scheidegg to Jungfraujoch stops at least once (Eismeer) and as far as I know you will be able to get off the train and wonder about. It's short stops though, and I'm pretty sure you're expected to take the same train and not wait for the next one. The real wonderful view is at Jungfraujoch itself - I have done this trip more than once but I don't remember anything special about the stop(s) halfway. Getting out, look around, getting in again, it's something like that. Besides: I don't think you will want to wait for the next train, as these trains are mostly full.
But it will be worth your while though to get up there and look around! It's really special!
Wishing you a nice trip,