Beautiful hike. I can see why it would be difficult to end hike by turning back. Always more to see. I love the beautiful blue of the Engadin lakes and the glacier shot also. Fun fact: The figuring skating club in Oakland, California is name St. Moritz "Founded in 1931, St. Moritz is the oldest ice skating club in California." -according to their website. My kids used to skate at that rink alot but they played hockey, not figure skated.
Only recently, I have started to realize how many places from Europe are somehow appearing in the US. Sometimes, you don't even know if people mean a place in Europe or in the US :)
Your kids seem to be having a great dad! :)