Key facts
- Seibu-en Yuuenchi's New Family Area 'Wanpaku Republic' to Open on July 17, 2026!
- Seibu-en Yuuenchi (Saitama Prefecture) will launch its new family area 'Wanpaku Republic' on July 17, 2026. Spanning approximately 2,400 sqm, it features vibrant play equipment, thrilling slides, trampolines, mist-based cooling zones, and water play areas designed for children aged 0–12 to enjoy active, imaginative play.
- Source: PR Times
- Date: June 16, 2026
Direct answer
Seibu-en Yuuenchi (Saitama Prefecture) will launch its new family area 'Wanpaku Republic' on July 17, 2026. Spanning approximately 2,400 sqm, it features vibrant play equipment, thrilling slides, trampolines, mist-based cooling zones, and water play areas designed for children aged 0–12 to enjoy active, imaginative play.
- Citation
- Seibu-en Yuuenchi's New Family Area 'Wanpaku Republic' to Open on July 17, 2026! (June 16, 2026), PR Times
- Source
- PR Times
- Date
- June 16, 2026
Seibu-en Yuuenchi (location: Tokorozawa City, Saitama Prefecture; General Manager: Tomohiro Nishida) will launch its new family area 'Wanpaku Republic' this summer on Friday, July 17, 2026! This press release details the new attraction.
'Wanpaku Republic' is located between the existing family zones 'Let's Go! Leoland' and 'Sunset Hill Playground,' offering an open, dynamic space filled with athletic play equipment where children can run, jump, and play to their heart's content.
The colorful play structures feature three thrilling slides: the 'Roller Slider,' a 40-meter-long slide extending from a tin robot; the 'Tube Slider,' which creates centrifugal force around curves; and the 'Free Fall,' offering a heart-pounding drop. Additional attractions include the 'Trampoline' and 'Net Area,' along with experiential elements like the 'V-Shaped Balance Beam' and 'Hello-Hello Tube' that stimulate children's curiosity, ensuring every corner of the area is packed with fun.
The area also includes water play features such as the 'Fountain Palette,' where visitors can enjoy splashing water from the ground, as well as cooling mist installations like 'Pole Mist' and 'Sea of Clouds Mist,' allowing guests to stay cool and comfortable during the hot summer months.
With the addition of 'Wanpaku Republic' following 'Let's Go! Leoland※1' and 'Sunset Hill Playground※2,' Seibu-en Yuuenchi is evolving into an even more engaging destination where families can play and explore like never before.
※1 'Atom's Lunar Adventure' roller coaster and the rotating attraction 'Fly! Jungle Hero Leo' are among the six experiences, including four rides, available in this zone.
※2 This area offers five experiences, including three attractions: the swinging ride 'Swing Swing,' the rhythmic 'Spring Ride Tower,' and 'Jungle! Drive,' which lets children explore a storybook-style jungle.
■ Exciting Play Experiences for Children
Roller Slider
Tube Slider
Net Floor & Trampoline
Spread across approximately 2,400 sqm, the vibrant play structure offers a wide range of athletic experiences.
〇 'Roller Slider'
A 40-meter-long slide extending from a tin robot structure. Designed to take advantage of elevation changes, it offers thrilling speed and scenic views of the surrounding park.
〇 'Tube Slider'
A twisting enclosed slide where centrifugal force shifts riders from side to side. The dark interior adds suspense as visitors wonder when they'll emerge, creating an exhilarating experience.
〇 'Net Floor'
A soft, bouncy net surface where children can walk, jump, or lie down and play freely. Positioned above the trampoline, it also offers a thrilling sense of height.
〇 'Trampoline'
Allows full-body jumping, giving children the sensation of flying through the air.
■ Summer Cooling Features
In addition to the 'Fountain Palette,' where water sprays from the ground, the area features mist-based cooling installations such as 'Pole Mist' and 'Sea of Clouds Mist,' providing refreshing relief from the summer heat.
Near the 'Fountain Palette,' there is also a dedicated play area for toddlers, ensuring families with young children can enjoy the space safely and comfortably.
■ 'Wanpaku Republic' Overview
Operating Hours: July 17 (Fri) – August 31 (Mon), 10:00–18:00
※ On July 17 (Fri), 22 (Wed), and 29 (Wed), operating hours are 10:00–17:00.
※ Operating hours may change due to events or other factors. Please check the official website for updates.
Website: https://www.seibuen-amusement-park.jp/
※ Final admission is 30 minutes before closing.
Age Requirements: Children aged 0–5 must be accompanied by a guardian (18+). Children aged 6–12 may enter independently. Guests aged 13 and over cannot use the facility. Please note in advance.
※ Operations will be suspended on rainy days.
※ Sandals or open-toed footwear are not permitted.
■ Enjoy Adjacent Family Areas with 'Wanpaku Republic'
'Wanpaku Republic' is located between two existing family zones: 'Let's Go! Leoland' and 'Sunset Hill Playground.' Visitors can move freely among all three areas, creating a full day of immersive family fun.
Let's Go! Leoland
Sunset Hill Playground
■ Seibu-en Yuuenchi has revised its pricing structure effective April 6, 2026.
※ Visitors with disabilities and their companions receive a 50% discount on listed prices.
※ For other ticket types, please visit the Seibu-en Yuuenchi website.
https://www.seibuen-amusement-park.jp/
※ All prices include tax.
※ Images are for illustrative purposes only.
※ Content is subject to change or cancellation without prior notice. Please understand.
Announcement on 'Wanpaku Republic' released March 16, 2026
https://www.seibuen-amusement-park.jp/20260316_newsrelease.pdf
〇 Customer Inquiries
Seibu-en Yuuenchi Call Center TEL. (04) 2929-5354
[Operating Hours: 30 minutes before opening – closing time]