Did you look on this website for Rick's recommended itinerary of Switzerland? It may be helpful.
Salzburg plus some Switzerland will be great fun!
Switzerland Itinerary
Alps, Berner Oberland, Switzerland
Spend most of your time in Switzerland getting high in the Alps.
By Rick Steves
So much to see, so little time. How to choose? To help you get started, I've listed my top picks for where to go in Switzerland, and my plan for your best two-week trip.
Depending on the length of your trip, and taking geographic proximity into account, here are my recommended priorities:
3 days: Lauterbrunnen Valley (Berner Oberland)
5 days, add: Luzern and Central Switzerland
7 days, add: Bern and Lake Geneva area, connecting with Golden Pass scenic rail journey
10 days, add: Zermatt and Appenzell, linking them with the Glacier Express train
14 days, add: Lugano and Upper Engadine, connecting with Bernina Express and Gotthard Panorama Express train rides
16 days, add: Zürich and Murten
21 days, add: More day trips (French Swiss countryside), more hikes, and time to slow down