I signed up for the swimming class organized by Children's Palace Swimming Club during the holiday, and the training fee was 600 yuan (continuous class 10 days). I signed up for a class of the 25-meter bag association. If the leaflet states that I can't meet the standard after ten classes, I can continue to study with the next class until I meet the standard. But this is not the case. After 10 days of class, the child has not been able to swim 25 meters independently. Other classes have a similar situation, but he is not allowed to continue the next class. He was just sent away with a small award. The weather is hot, and the swimming pool is a good place for everyone to cool off. There are also many people who choose swimming. Because it is summer vacation, many children come here to learn swimming. The swimming pool is divided into several sections for swimming lessons at different times, so I feel that the swimming pool is very crowded. Those who buy swimming tickets can only swim freely in one lane. There are free lockers here, but lockers should have their own locks.