Hasunuma Water Garden Advance Reservation Ticket

Hasunuma Water Garden is one of Chiba Prefecture's largest pools, enjoyable for everyone from adults to children. Covering an area about 1.5 times the size of the Tokyo Dome, it is one of the largest pool facilities in the prefecture. It is packed with thrilling slides and attractions, including 19 pools themed around the life cycle of water, the "Keiryu-kudari" mountain-stream ride with panoramic views of the Kujukuri coast, the "Wizard Slider"—a new-sensation slide you ride head-first on a mat—and the "Splash Shaker," a mega-slider that made its world debut in 2015. You can also come and go to the sea freely, for a full day of fun. [Aqua Athletic Renewed] The hugely popular "Aqua Athletic," available for elementary school children and up, has been expanded and renewed. Enjoy the larger course to your heart's content. *Customers who have completed the reservation and payment for this ticket do not need to obtain a WEB numbered ticket. On the day of your visit, please come directly to the pool entrance and show your QR code. *A refund will be provided in the event of a temporary closure due to facility circumstances.

• Duration

  8h

• Adult

  JPY 2,200

• High School Student

  JPY 1,200

• Junior High School Student

  JPY 500

• Elementary School Student

  JPY 400

• Infant (age 4 and older)

  JPY 200

• Highlight #1

  One of the largest pool facilities in Chiba Prefecture, covering an area about 1.5 times the size of the Tokyo Dome. Enjoy 19 pools themed around the life cycle of water.

• Highlight #2

  Packed with thrilling attractions such as the "Keiryu-kudari" ride with sweeping views of the Kujukuri coast, the head-first new-sensation "Wizard Slider," and the world-first mega-slider "Splash Shaker."

• Highlight #3

  The hugely popular "Aqua Athletic," available for elementary school children and up, has been expanded and renewed. You can also come and go to the sea freely, for a full day of fun.

• What's Included

  • Hasunuma Water Garden admission

• Requirements

  • Admission fees apply from infants aged 4 and older.
  • This ticket cannot be used together with other coupons, complimentary tickets, or discounts.
  • Small children must always be accompanied by a guardian.
  • We cannot accept responsibility for accidents or injuries, so please use the facility with sufficient care.

• Restrictions

  • Guests with tattoos (including tattoo stickers and body paint) will not be admitted.
  • Guests who are intoxicated may not use the facility.
  • Guests judged by the organizer, on the day of participation, to be unable to be kept safe may not use the facility.
  • Smoking outside designated areas within the park, and drinking alcohol within the park, are not permitted.
  • Diving and underwater swimming in the pools are prohibited.
  • The following may not be brought in: diving masks (swimming goggles are permitted), fins, snorkels, glass products, cameras, alcoholic beverages, pets, and any other items deemed dangerous (including play equipment/floats).

• Additional Info

  • [Operating period] July 4 – September 23, 2026
  • [Operating hours] 9:00–17:00 (last entry 15:00)
  • [Closed days] July 6 (Mon)–10 (Fri), July 13 (Mon)–17 (Fri), and weekdays in September. *Closed in bad weather.
  • Operations may be canceled in the event of stormy weather. In that case, we cannot compensate for travel expenses to the site.
  • A refund will be provided in the event of a temporary closure due to facility circumstances.

• Cancellation Policies

  • Until 17:00 the day before: 0%
  • After 17:00 the day before: 100%