Yui-Shiori
Enjoy water play until evening on the floating obstacle course
HokkaidoLeisure

Enjoy water play until evening on the floating obstacle course

About this spot

This floating aquatic obstacle course opens in 2026 with a preview run from Saturday, July 18 to Monday, July 20, holds its grand opening on Saturday, July 25 and operates until Sunday, August 30. Floating bridges, trampolines, slides and other obstacle features are linked together on the water at Usu Beach, so you can play with your sense of balance while sending up plenty of spray. Play is based on wearing a life jacket, so it is set up for children who are not confident swimmers to try alongside a guardian. Opening hours are roughly 9:00 to 16:00, but may vary with the tide. Amid scenery taking in Mount Usu and Mount Showa-Shinzan, you can enjoy active water play with a different flavour from ordinary sea bathing.

Season & hours

Name: USUマリンアスレチック アトゥイ

Date & time: 7/18 (Sat)–20 (Mon)プレオープン・7/25 (Sat)グランドオープン–8/30 (Sun) 9:00–16:00頃(土日祝・お盆は8:30開園17:00閉園、平日9:00開園16:00閉園、8/24–28休園、潮位により変動)

Venue: 北海道伊達市 有珠海水浴場内

Source: atui.jp

Tips

It is reassuring to check fees, facility details and the day's operating status on the official website before setting out. Opening hours can shift with the tide, so do not forget to check the latest information before you visit. Bring clothes you do not mind getting wet and a bag to keep your removed clothes and valuables together.

Best time to visit

Entering at 12:00 lets you check in before the peak of the crowds and gives you plenty of play time until the 16:00 close

Access & map

Inside Usu Beach, Date City, Hokkaido

Model course featuring this spot

2026 USU Marine Athletic Atui Full-Day Course

Hokkaido

Explore features & model courses

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Enjoy water play until evening on the floating obstacle course (Hokkaido) | Things to Do & Highlights | Yui (栞)