Enjoy Water Activities Until Evening at the Flowing Water Pool, Slides, and Shirahama Beach
About this spot
Shirakobaato Suijo Park (Arnet Home Smile Park Shirakobaato) in Koshigaya City is an outdoor leisure pool that operates from July 4 (Saturday) to September 6 (Sunday) in 2026. The park's flowing water pool is a popular area where you can enjoy the water's gentle movement while relaxing on an inflatable ring, and the slides bring cheers from both children and adults. Shirahama Beach offers a different kind of fun—you can play in the sand or relax by the water's edge, which is different from the regular pool experience. With changing rooms, showers, and shops complete, you can spend the entire day traveling light with just a swimsuit and towel.
Season & hours
Name: しらこばと水上公園（アルネットホームスマイルパークしらこばと）
Date & time: 7/4 (Sat)–9/6 (Sun) 9:00–17:00 ※営業日は7/4・5、7/11・12、7/18–8/31、9/5・6のみ
Venue: 越谷市・しらこばと水上公園（アルネットホームスマイルパークしらこばと）
Tips
Operating days are only 7/4–5, 7/11–12, 7/18–8/31, and 9/5–6, so confirm the opening dates before your visit. Admission is ¥1,100 for adults (high school students and above), ¥300 for children (elementary and middle school students), and ¥2,500 for a family ticket (2 adults + 2 children)—a great deal. Operating hours are 9:00 AM–5:00 PM. During summer vacation weekends, it gets crowded, so arriving early in the morning is recommended.
Best time to visit
Approximately 5 hours required. If you enter at noon, you can secure a spot before the afternoon crowd peaks and enjoy leisurely play until the 5 PM closing time.
Access & map
Shirakobaato Suijo Park (Arnet Home Smile Park Shirakobaato), Koshigaya City
Model course featuring this spot
2026 Shirakobaato Suijo Park (Arnet Home Smile Park Shirakobaato) – Full Day Experience Course
Saitama
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