I am planning a 2 week trip to Switzerland and Venice--one week in each place--in mid-August. Is it feasible to use Bern as home base for one week and take day trips to Interlaken/Jungfrau, Zermatt, Gimmelwald, Lake Geneva, Lucerne, etc? (Possibly ride one of the shorter scenic train rides?) I am most interested in hiking and seeing Switzerland's natural beauty.
Thanks for the advice!