<<" 1postnew memberAug 26, 2015 - 2:28 PMwe are travelling from lucerne to montreux on 8th september ( part of a 8 days trip in switzerland)1.is it okay to start from lucerne at 9 am, travel by train to interlaken( drop the baggage at the station) and take a trip to jungfrau and getback to interlaken by 3 pm and proceed to montreux by train ????">>
Without double checking the time table, it seems like it could be done. I'm guessing a 12 hour day. Hope I'm wrong.
Why would you compress so much stuff in so little time? This may help.
Jungfrau is a weather dependent objective. If you want to see the scenery, you need to pick a day with clear weather...or, plan on three days to wait around for good weather.
That is my reaction to your proposal. Others may differ.
<<"2.do we need any special gear at jungfrau /grindwald etc ..to hang aroundin snow at this time of year or wind jacket will do .... ( we are inour 60's btw) ???">>
You need layers for warmth and rain protection for cold rain.
Jungfrau and Grindelwald have a couple of thousand or more meters altitude difference. That, in turn, means substantial temperature differences. Each location will require different warmth in your garments, out doors.
<<"3. i have heard of a place called gimmerwald ..... any idea if its near by ..??">>
It is. Above Stechelberg, below Mürren. This map will help.
map.geo.admin.ch/?X=155260.00&Y=632320.0 0&zoom=5&lang=de&topic =swisstopo&bgLayer=ch. swisstopo.pixelkarte-farbe