My wife, 2 children (ages 14 and 10) and I are planning to be in Wengen for 5 nights in July. We are flying into Zurich on the 20th and will be leaving on the 25th for Bellagio. I am having a difficult time calculating the most economical passes to purchase. Once in Wengen, we plan to stay in the Jungfrau region until we depart and to use the region's transportation network extensively. Is the Swiss pass or card the most economical? If we use the Swiss card, how do I purchase tickets from the border to Bellagio? Is it worth also purchasing regional passes? Regardless of which pass or mode of transportation, do both of my children travel for free? Any advice would be great.