The high altitude train was for the most part not bad. A little cramped (and we were in the deluxe seats), but very new and mostly pleasant. We did feel a little short of breath when reaching 16000 ft, so we plugged in our oxygen tubes and were breathing a bit easier until we reached the lower altitudes.
We are now in Xian, where today we will go to see a bit of the city and the terra cotta warriors. I walked around near our hotel this morning and my first impression is that the city is spookily spotless. There isn’t a stray paper or morsel of anyting anywhere.