No, really. You do not. This isn't just a swimming pool in Sichuan province, it's a sea of people.
Website Beijing Cream points out that crowded Chinese swimming pools are famous (infamous?), and if you'd like to see more, there are numerous photos online.
This particular video was recently uploaded to Chinese video site Youku, where it garnered over 800,000 views. That might be more than the people in the pool!
Crowded Chinese swimming pool [BejingCream@YouTube via Bejing Cream]
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