This grand complex hosted the FINA world championships in 2010, and qualifying for the 2012 Olympics too; inside there’s an Olympic size pool as well as a diving pool
(the latter sadly not open to the public).
Pricing are as follows:
20RMB (weekdays 1-3pm, weekends 7-9pm)
40RMB (weekdays 3-9pm, weekends before 1-7pm)