We are renting a villa in Menaggio and know how beautiful Lake Como is since we have been before and cant wait! We do have enough days though for 1 day trip to Switzerland. I know Zurich is far for a day trip, so not sure that is worth 7 hours total in the car. I was wondering if it is worth driving to the St. Moritz area OR taking the Bernise Express from Varenna to Tirano, so forth. Which is a better option? The youngest kids are 2 and 4 years old so worried if on the train they would love it at first then go stir crazy after a few hours! With the car we can stop at least. We have 8 adults and 4 kids. Thoughts?