Shimoochai Pool

Grubby, but does the trick

This is quite a small and basic outdoor seasonal pool in Chuo ward in Saitama City. It is very near the visa office. This is the only one of the four Saitama City pools that they have some tickets at the gate, but it might be best to buy one in advance at a 7-11 as they may limit the number of people they let in daily.