Organized by the Ishikari River Kudarankai, this two-day event features a river rafting trip down the Ishikari River, water-based educational activities (such as Aqua Ball, MEGA SUP, and kids’ boats), and a summer evening festival (featuring various food stalls and stage events).

The photo above shows last year’s river cruise.
The deadline for river cruise registration is Wednesday, July 8.

１　Ishikari River Cruise (L=14.5 km)
＿　　Date & Time: Saturday, July 18, 2026; Registration begins at 9:30 AM
＿　　Participation Fee: 2,000 yen (for those capable of paddling down the river on their own)

Please download the registration form here, fill it out, and send it via email or fax to the address listed on the form.

２　Summer Evening at Sunagawa Floodplain
＿　　Date & Time: Saturday, July 18, 2026, 3:00 PM – 8:00 PM
＿　　Various food stalls, food trucks, and stage events

３　Water Activities at Sunagawa Flood Control Reservoir (Free)

＿　　Date & Time: Sunday, July 19, 2026, 10:00 AM – 2:00 PM
＿　　Try out Aqua Balls, MEGA SUPs, kids’ boats, and more.
＿　　No registration required; free of charge. Please come directly to the venue on the day of the event.
＿　　Please wear clothing that can get wet.

◆Inquiries：Ishikarigawa kudarankai Festival Secretariat (c/o Sakurai Chida Co., Ltd., Attn：Ms. Miyamoto)
TEL: 0125-65-2251

Download the flyer → Click here

Sunagawa Retention Basin Map Code: 360 228 491*21