Hey hey, ask the right person. The swimming pool outside Erwai is very good. Where did you swim in college for 4 years? If I have a student ID card, I can get a card once 12 yuan. If you don't get a card, it's 30 times. But the environment inside is very good. Change the water for disinfection once a week, basically on Wednesdays. So on Thursday, you will find that the water is clean and comfortable.

It can be opened to the outside world.

The rule is 2 hours at a time, but no one will let you out after 2 hours.