Fully Enjoy the Wave Pool, Mountain Stream Slider, and Rock Pool Until Evening

About this spot

Operating daily without holidays from July 5 (Sunday) to September 6 (Sunday) in 2026, this is Yamagata City's premier outdoor leisure pool. The wave pool, where waves repeatedly wash ashore, is a star attraction popular with families, while the 75-meter mountain stream slider offers thrilling excitement for elementary school students through adults. The shallow-depth rock pool provides a safe space for small children to enjoy water play comfortably amid rock-like formations. For residents and commuters in Yamagata City, admission is very reasonably priced: ¥800 for adults, ¥600 for high school students, ¥400 for junior high students and under, and free for children 3 and under. After a light physical activity from morning sightseeing, you can enjoy abundant water play from midday through the evening, making for a perfect full day.

Season & hours

Tips

Admission prices differ between in-city and out-of-city use, with out-of-city rates being higher, so it's wise to check the official website in advance for peace of mind. Operating from 9 AM to 5 PM with no holidays, visiting on a weekday allows for relatively relaxed use. The mountain stream slider is physically demanding, so tackling it during the early afternoon when energy remains high is recommended. Some areas of the pool deck have limited shade, so be sure to bring and apply sunscreen and wear a hat.

Best time to visit

Entering at noon allows you to use the entire afternoon, enjoying about 5 full hours of play until the 5 PM closing time.

Access & map

Yamagata City, Yamashita Mayumi-Gakizaki Pool Jaba (山形市馬見ケ崎プール ジャバ)