Yakurai Water Park
やくらいウォーターパークやくらい うぉーたーぱーく
Day Use
YesHours change with the season: April to June and September to March, weekdays 14:00 to 19:00, weekends/holidays 11:00 to 19:00; during the summer season (July 1 to August 31), daily 9:00 to 20:00. Regularly closed on Tuesdays; in summer also closed on the second Monday and Tuesday of July, the fourth Monday and Tuesday of August, and the second Monday and Tuesday of September.
Weekday day pass: adults (junior-high age and up) 1,300 yen, children (age 3 and up) 750 yen. Weekend/holiday day pass: adults 1,500 yen, children 850 yen. Summer season (July 1 to August 31): adults 2,300 yen, children 1,200 yen. Monthly pass 6,000 yen. An onsen-only ticket also exists (around 800 yen for adults and 400 yen for children per an aggregator listing, roughly half price after 16:00), but pool-only entry isn't offered.
Bathing & Water
Uses natural hot spring water
The official site separately notes the bardy pool's "utaseyu" feature is heated pool water, not spring water ("打たせ湯"と表記しておりますが、温泉ではございません) - that disclaimer applies to the pool area, not the rotenburo/indoor bath which the aggregator lists as natural onsen.
Open-air outdoor bath
Enclosed indoor bathing area
Sauna room of any kind
An August-2025 Google review reports no sauna and no cold bath ("サウナ、水風呂は無く大きな特徴はなし"), but the nifty onsen aggregator listing (matched by exact name/address/phone) lists a sauna among the bath facilities; kept the aggregator per source-authority order.
Cold water plunge bath, typically used after sauna
Bathing Arrangements
Shared bathing area for all genders
No mixed-bathing (混浴) mention anywhere across the official site, aggregator, or reviews; described as a standard family facility.
Policies & Services
Relaxation space for after bathing
Views
MountainsPrograms
About
Yakurai Water Park is built mainly for swimming: a 25-meter pool, a kids' pool, a bubbling spa pool with jets, two lazy rivers (one indoor, one outdoor for summer), and a water slide. The onsen bath is a smaller add-on at the end of the visit, an indoor tub plus a plain open-air rotenburo looking out at Mt. Yakurai. It's natural spring water, nothing dressed up, more a place to rinse off and unwind after the pool than a bathing destination in its own right. The dome-shaped roof over the pool hall is meant to echo the mizubasho (水芭蕉), the skunk-cabbage flower that is Kami town's symbol. It's a family-oriented facility with a free rest area for a nap and a small poolside canteen, run as a day trip rather than an overnight stay.
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Last updated July 22, 2026