How about the swimming pool of Banpo Lake Hotel?

I went during the week. There were not many people and the environment was very good. There is a swimming pool on the first floor, surrounded by bright floor-to-ceiling glass. If you go there at 4 or 5 o’clock, you can hang out with your friends after swimming. It's so cool to chat on the beach chair~ The water for bathing is also very comfortable, and the swimming pool is big enough! Except for the inconvenient transportation of this hotel, everything else is good. Of course, it doesn't matter if you have a car