I went to Beijing with my family before, not with classmates and
teachers. About 10 yrs back.
We went there during chinese new year, so we get to see snow, get
to see frozen lake where ppl ice-skate on the lake suface. It was
freaking cold, esp when we went up to the mountain where one of the
gate of the great wall is.
The whole trip was like a history lesson...... We go to many
places, and the tour guide tell us the history behind. So we walk
and walk, listen to her stories.