Mar 30, 2017 - 4:40 PM
Welcome to MySwissAlps Minalsrini1!
I wouldn't say Interlaken is a good place to visit. Many shops, pretty touristy, not extremely scenic by Swiss standards. But it is a practical hub with very good train, bus and boat connections to nearly everywhere. So it depends on your interests, but be sure to read the Interlaken page before you decide.
Zurich has a lot to offer, but it is not in the Alps. With only 8 days it makes sense to stay in Lucerne instead and visit Zurich briefly upon arrival or not at all. Read the Zurich and Lucerne pages so you can get a feel for these towns and pick the best one based on your interests.
I'd prefer Montreux or Vevey over Lausanne because they're smaller, but any of these towns is a good option to explore the Lake Geneva region. Lausanne is better for city-life, museums, shopping, etc.
Now, as for your questions:
1. Yes, that order makes sense, but you best first decide in which towns you'd like to stay.
2. Please see the above links, and the Zermatt page, to decide. There is a lot to see everywhere. Even if you would stay all 8 days in one place you would not run out of options in most cases. I agree that 3 base towns should be the maximum.
3. It's explained here: myswissalps.com/swisst ravelpass/howtouse.
4. This depends on your plans for day trips but in general the advice is to dress in layers so it's easy to adapt to any kind of weather, even during the course of one day.
5. Nearly all restaurants offer vegetarian dishes, and most have a menu displayed near the entrance so you can have a look. All larger supermarkets like Coop and Migros offer plenty of vegetarian food too. For more about food, please see here.
Last modified on Mar 30, 2017 - 4:42 PM by Arno