The Charlotte Palace in Berlin is much inferior to the Charlotte Palace in Potsdam. Except for the palace at the entrance, there is hardly anything in it. Garden pools, forests and grasslands are all poured out in the same way, and they are not exquisite enough. Fortunately, the Palace Garden is close to the Grand Canal. The canal is about 20 kilometers long. The main waterway is four or fifty meters wide. The river is narrow and the berth can barely pass through. The water quality is very poor in narrow areas, which can be said to be sewage. I don't know how many swans and ducks swim for a living. We sat in the chair under the patronage of the shade and enjoyed the cool feeling of the gentle breeze. Watch all kinds of yachts and boats on the river.