Itinerary arrangement for 7 days "interlaken"

The first two items on your list must be done on clear days to get your money's worth. Bicycling in the rain is no fun either, but if you get a 6-day Berner Oberland Pass, you would probably want to do this on your first or last day because the pass isn't needed for that.
Some of the others can be done in less than ideal weather as they are not at high elevation.

Any weather forecast this far out is unlikely to be accurate, no matter how good they are. It certainly won't be good for the mountains which have quite different weather than the flatlands near them. And it is unlikely that the rain will be all day.

Part of the south shore of Late Thun is relatively flat, but I have no idea where you would cycle. The road is next to the tracks which are next to the lake for many parts.

By time you have reached Spiez it is not flat.

There may be a path on the north shore of Lake Thun near where the train goes, but the south shore is nowhere near flat. East of Brienz it is relatively flat as far as the head of the valley at Meiringen but there is no lake there.

Or did you mean around a smaller lake?

For cycling you might try renting bicycles in Laruterbrunnen (right on the main street) and ride south up the Lauterbrunnen valley. It is relatively flat and goes by Staubbach and Schmadrifällen waterfalls. On this route you can also get to the cable car to take you to Gimmelwald and Trümmelbach Falls but I would check a the bike rental about leaving the bikes unattended. You could probably do this in a half day.

Thanks
But ,
- please :I need someone arrange and sort this program for me,because I don't know which places i can go in one day, and how much time i need for it, for instance one day you can go first to lauterbrunnen then Winteregg then .... ..and don't forget .... along the way..and it could be do in sunny/ rainy day
And for other day....

-i am not sure to buy 6 or 8 days bernese oberland pass, perhaps i buy 8 , because we want to spend 2 days in bern after.

-by cycling i mean a day cycling , a distance about 20-30 km to go and back, not so important near lakes, but more flat
Sorry to make a trouble to arranging

As Nigel said, disregard any weather forecast you have for the area now. Weather in the mountains changes very quickly, and will very within a short distance. Look at the weather outlook for a particular mountain no more than 48 hours in advance- then check again the morning of your planned visit.

With regard to your itinerary, are you planning to do a fair bit of hiking on the mountain trails, or are you just interested in getting to a high point for the view, then taking the lift back down? I ask because obviously it takes longer to get from place to place by foot (but it's so worth it!). Note that if you are staying in Interlaken, it will take you about 30 minutes on the train to get to either Lauterbrunnen or Grindelwald, not counting your walk to the station, and waiting for the next train (get a schedule!).
Then you need to take one or more cable cars or trains up to your objective, which can take up to an hour more, in the case of Jungfraujoch or Schilthorn.

Kleine Scheidegg is a required change of trains on the way to Jungfraujoch- and possibly another fare, depending on your pass. You can get to Kleine Scheidegg from either Grindelwald or Lauterbrunnen- or do a round trip to include both. With an early start, it's possible to do a half day of hiking after visiting the top. You could come back via Grindelwald, and take the long cablecar to First, then walk to Bachalpsee.
If you go up to the Schilthorn early, it would combine well with a walk through the valley from Stechelberg to Lauterbrunnen (6 km), with a visit to Trummelbach Falls along the way.
Schynige Platte is closer to Interlaken- you take the cogwheel train from Wilderswil to access it. You could do this in a half day, and still have time to visit Harder Kulm, which is almost in downtown Interlaken. Of course, all of these combos depend on how much time you want to spend hiking the trails once you have achieved some elevation.
I hope this helps. Have a great trip!

if you watch Rick's episodes on this area he rents a bike and rides it downhill and returns it. That's about as easy a ride as there is!

Also, it sounds like you might be more comfortable using the services of a travel agent to set your itinerary for you.

Thanks
Dear ottawanderer
I can walk less than you,70 percent of you.But I don't wanna miss a good hiking with beautiful landscape , so I can sort ( you can help) hiking areas to necessary and unnecessary,or so long and medium. I have problem with slopes, I mean real ones.

Hello ehsanemrani,

All of the trails I listed in my last post should be manageable. I am 64 and I walked all of the except for the Harder Kulm in June, plus several more challenging walks. For a lot of info on this area, see a thread started by Vee in this same forum. It's titled "Three days in Berner Oberland with Elderly Moms". In particular, check out 2-4theworld's very detailed descriptions, as well as my own. You can get more info on walks in the Jungfrau area at
www.jungfrau.ch/en/tourism/
and clicking on " Destinations ". All of the areas you listed are there, with trail maps and descriptions.
Enjoy!

Than you very much. I checked all maps and difficulty.