The swimming pool of Nanhe Sports Center has classes for children and adults every year, which seems to be four or six hundred per month. I also heard it from my friends, but I didn't go to the actual investigation. In fact, swimming is taught everywhere, and so are many swimming pools. I know the swimming pool in Wuyi Square and the swimming pool in the Third Water Plant. The water quality of the third water plant is relatively good, but it is a little far away, and it is heading for holy water.