Seibu Pools Shirakobato Park Festival

Seibuen Yuenchi Amusement Park have confirmed that their pools will open in 2022. They will open daily, weather permitting, from Friday July 15th to Sunday September 4th in 2022. In both 2020 and 2021 Seibu Yuenchi was one of only a handful of pools that opened. This year more, but not all, of Saitama’s summer pools will open. You can see which are opening and which are not here.

Seibuen pools water park seibu summer
Image from the official website

Seibu Summer Pools General Information

Seibu pools, the summer water aka aqua park at Seibu Amusement Park, open their summer pools annually in July until the first week in September. Before the pandemic they opened from early July, but since the pandemic they have been opening from mid July. They normally have a night pool on select dates from the middle of July. However, as of July 2nd 2022, the night pool is not currently scheduled.


  • Water Slider with 6 different slides of different speeds
  • A wave pool
  • A flowing pool
  • Kids pool
  • Viking Bikke Exciting Water land
  • Hello Kitty Water Park
  • Challenge Air Athletic
  • Night Pool – in 2021, on account of the Coronavirus, it was more an “evening” pool! It closed at 7 pm. It was only available on select dates. It is currently not scheduled yet for 2022.

Big Summer Festival

Seibu amusement park and its seasonal pools, beer garden and fireworks (known as the Big Summer Festival) are popular with locals and as well as people from outside the prefecture. In fact, it frequently ranks on the top ten most popular pools in all of Japan. In 2022, Walker have awarded it third place in their annual Walker Pool Awards. Number one is also in Saitama, see where here! Many commute from Tokyo and further afield too and weekends can be very crowded during a “normal” year. However, in 2022 they will limit the number of people who can enter each day. You can book a ticket in advance here.

One of the highlights of the 2021 season was a large scale water fight festival. It is back in 2022 too as part of their Big Summer Festival. Fireworks will also be launched (on weekends) as part of the festival in 2022. Find out more here.

2022 Information

In 2022 the pool will open daily from Friday July 15th until Sunday September 4th. The hours depend on the day. The base hours for the whole park are 10 am to 5 pm, except during summer holidays when it opens at 9 am. Generally the pools are open from 9 am to 5 pm on weekdays. And generally they open until 7 pm on weekends (this is not confirmed for 2022 yet). In a non-pandemic year the night pool is open until 9 pm. Over Obon the pools generally open weekend times. You can see the most up-to-date schedule here.


The price went up in 2021. The day pool pass for adults and children over 15 is 2,900 yen. However, when they have special events on, normally over Obon, the pool entry price is 3100 yen. If you want to play in the amusement park too it costs 4700 yen. Kindergarten and primary school aged children and people over 60 can enter the pools for 1,900 yen on a weekday and 2,100 yen on days that there are special events on. Children under 2 are free. There are discounts for people with a Seibu Prince Club card.

(Pre-pandemic there was a water park for young children that started before the pools. However, it doesn’t seem to be on in 2022. However, in 2020 it was announced very last minute. It normally costs 500 yen for two hours until mid July. Then after that the fee is included in the pool price. Only children aged between 0 and 11 years old can use the pre-pool water park. However, an adult must accompany them.)

There are 4 pools (1 is massive) which include one 30 cm water depth pool that children in nappies / diapers ARE allowed into. Children over 3 are allowed to zorb on water with a parent. They have an “Hello Kitty Water Park” which is a separate water play area.

Seibu Pools Access:
5 minute walk from Seibu Tamako Line Seibu Yuenchi Station and Seibu Line Seibuen Station.
Parking for 1200 cars, the parking charge at the main car park has also gone up – from 1500 yen to 1800 yen. The overflow car parks cost 1500 yen. You also have to pay 100 yen to park a bicycle!
Sat nav/ GPS: phone number 042-922-1371

The amusement park normally launches fireworks during the summer and the park also has a seasonal beer garden. However, neither were available in 2021. It is not yet known if they will be available in 2022.

For more pools in Saitama, please see this article.


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