We intend to visit and stay in Zurich for eight days. We would also like to visit some other places(I've heard for Lucerne, Berne,Interlakken,Rhine Falls). What type of ticket should we buy? We are a couple and I think that the Swiss travel Pass would be the best for us. Do you have any other suggestions for one-day excursions? It's our first time in Zurich and your comments would be very helpful.Thank you!