In 2026, the water park is scheduled to open on July 18!!
Fire Valley Water Park
7/18–8/31
Hours: 10:00–17:00 (last admission 16:00)
Regular admission: Adults ¥2,200 / Children ¥1,500 / Toddlers ¥1,000
Accommodation guest discount: Adults ¥1,800 / Children ¥1,200 / Toddlers ¥800
Enjoy water slides with three different heights, the Space Bowl where you drop straight into the water, and a lazy river that’s especially popular with kids!
There is also a shallow pool, so younger children can join in too.
Nature Zone now OPEN inside the water park grounds! Admission is an additional ¥500 on top of the water park ticket. You can interact with river creatures and rhinoceros beetles. Rhinoceros beetles can also be taken home (pair of beetles + insect case set: ¥1,500).
*Entry to the Nature Zone only is not permitted.
*As these are living creatures from nature, availability may end early.
Height restrictions
*All slides require a minimum height of 120 cm; however, for two slides other than Black Magic, children may ride together with a parent/guardian.
*The Space Bowl requires a minimum height of 120 cm. Even if your child is 120 cm or taller, please refrain from using it if they cannot swim.
• Please never take your eyes off children.
• Young children must be accompanied by a guardian aged high school or older.
• Guests with tattoos (including traditional tattoos) are strictly not permitted to enter or use the facilities.
• Tents are allowed (only those that will not damage the poolside surface).
• Outside food and drinks are not allowed (water bottles are OK).
• Coolers/cooler boxes are not allowed.
• Air pump available.
• Admission fees apply to accompanying guests as well.
*Bath towels are available for rental at the pool reception for a fee.
Hotel ANNEX Outdoor Pool
7/11–9/23
Hours: 10:00–18:00 Free for Accommodation guests (from 9/1 onward, open until 17:00)
*Bath towels are available for rental at the front desk for a fee.
Accommodation guests may use the pool before check-in and after check-out.
After check-out you can also enjoy unlimited access to the Onsen,
so we hope you’ll relax and take your time until evening.
*Please complete reception procedures first.