It is said that it is a 4-day trip, in fact, it is three days and three nights. Just ask for a day off. The tour guide Wang is very good and the explanation is in place. I feel that it is better than those professional interpreters of the attractions. Go to Beijing, 7 points to listen, 3 points to see. Just look, or thin. Combined with the explanation, it is very full.
The rhythm of the whole trip is still very compact. To have a lot of physical strength, it seems that you should strengthen physical exercise in normal times. Quack.