2026 Yamashita Mayumi-Gakizaki Pool Jaba (Outdoor Pool) Full-Day Experience Course

This full-day course centers around Yamashita Mayumi-Gakizaki Pool Jaba (山形市馬見ケ崎プール ジャバ), which operates daily from July 5 (Sunday) to September 6 (Sunday), 2026. In the morning, explore Kasjo Park (霞城公園) with its expansive castle ruins and lush greenery, then leisurely tour Bunsho-kan (文翔館), which exudes Taisho-era romance with its cool, welcoming interior. After lunch, enter Jaba to enjoy the wave pool, the 75-meter mountain stream slider, and the rock pool perfect for small children, with water activities available until evening. In-town admission rates are highly affordable: ¥800 for adults, ¥600 for high school students, ¥400 for junior high students and under, and free for children 3 and under, making it an attractive option for the whole family. Operating daily without holidays from 9 AM to 5 PM, the facility is easy to plan around whether visiting on weekdays or weekends. Located conveniently near central Yamagata, it's easily accessible by both car and public transportation. This course perfectly combines historical exploration with active water play in a single day—ideal for summer sightseeing in Yamagata. The mountain stream slider is a popular attraction where the whole family can enjoy thrilling fun, so it's recommended to tackle it during the early afternoon when energy levels are still high.