The only daily tour I could find to go into Switzerland was through a company called Tivano tours. I have contacted them multiple times with no response so I assume they're out of business. Anyone know a tour available to go through the Maloja Pass & on to St. Moritz then back through the Engadine Pass & Bernina Pass?
we researched this as well and found that there are really no tour companies that do this for you. you can plan to do this on your own but it will be a considerable amount of time to make it a worthwhile day trip. we planned on going from varenna to tirano and then take the bernina express to go to st. moritz and back the next day on the same route. it would be very expensive to do the bernina express without the swiss train pass and for us it was too much to handle in 1-2 days. it is doable but from the advice i got was that it would be hectic.