[Kishiwada] Run and you'll still get chased!? Japan's largest giant inflatable playground becomes a water park for 2 days only! Staff's serious water gun event to be held

WHATAWON, a multi-entertainment facility operated by antiqua Inc. (Headquarters: Izumi City, Osaka Prefecture), will hold a summer-limited event "WHATA Cool Splash" for two days only on July 11 (Sat.) and July 12 (Sun.). The event will feature the super giant inflatable playground "MJMJ (Mega Jump Mountain Japan)".

Details here

Event Outline

Event Name: WHATA Cool Splash

Dates: July 11 (Sat.), July 12 (Sun.), 2026

Event Times (Splash Time): 12:00 / 13:00 / 14:00 / 15:00 / 16:00 / 17:00

* Water gun performances by staff will be held each session.

Venue: WHATAWON Lawn Area "MJMJ" 1-32-1 Kishinoka-cho, Kishiwada City, Osaka Prefecture, 596-0817

Reception: WHATAWON's "SOKOTOTO" hot spring facility

Usage Fees (Tax Included)

【Weekdays (Mon-Fri)】 Unlimited 900 yen

【Weekends/Holidays】 30 minutes 600 yen / 1 hour 1,000 yen / Extension every 30 minutes 550 yen

* Fees are the same for adults and children. * Accompanying persons will also be charged.

Rentals & Sales

To allow you to participate casually even if you come empty-handed, we offer rental items and items for sale.

【Rentals】 ・Life jacket (M, L sizes) 500 yen

・Kids' swimwear 500 yen

・Face towel 130 yen

・Bath towel 220 yen

・Towel set (face towel + bath towel) 300 yen

* Rental and for-sale items are limited in quantity. They will be available until supplies last.

Powered up from last year. This year, splash time has been tripled

"WHATA Cool Splash" was popular last year as well.

This year, it's even more powerful, with splash times significantly expanded from twice a day last year to six times a day.

At the scheduled time, staff members with water guns will appear.

The thrilling experience of being chased even when you run, combined with the refreshing splash of water from the powerful performance of staff members who are serious about spraying water, will fill the venue.

This is a special event just for this summer that will bring smiles not only to children but also to adults.

Japan's largest giant inflatable playground "MJMJ" transforms into a summer-limited water park!

The venue, "MJMJ (Mega Jump Mountain Japan)", is one of Japan's largest giant inflatable playgrounds equipped with giant slides and athletic facilities.

The entire vast field will be transformed into a water park for two days only.

The experience of running around the playground while being showered with water splashes offers a sense of freedom unique to summer.

It is also recommended as a dynamic water play activity that is great for photos.

Usage Fees

You can enjoy "WHATA Cool Splash" with the usage fee for the super giant inflatable playground "MJMJ".

Participation is okay even if you come empty-handed

For those who suddenly want to play or haven't brought their swimwear, we offer rental items and items for sale so you can participate with peace of mind.

* Rental and for-sale items are limited in quantity. They will be available until supplies last.

About Rentals and Sales

【Rentals】

Life jacket (M, L sizes) 500 yen Kids' swimwear 500 yen

Face towel 130 yen

Bath towel 220 yen

Towel set (face towel + bath towel) 300 yen

【Sales】

Swim diapers

Towels

After playing, head to the hot spring facility "SOKOTOTO"

After playing to your heart's content, wash off the sweat at the hot spring facility "SOKOTOTO", and enjoy the gourmet food and shopping within the facility.

You can enjoy a day of playing, eating, and relaxing with your whole family.

Japan's largest overseas-style mall where pets are welcome

"WHATAWON"

Located in Southern Osaka, WHATAWON is a complex facility packed with diverse attractions including gourmet food, shopping, and hot spring facilities. It is a new style of entertainment mall designed to be pet-free, allowing many pet owners who cherish their pets as family members to enjoy their time comfortably.

Related URLs

WHATAWON HP https://www.whatawon.co.jp/

ANTIQUA Official Website https://www.antiqua.co.jp/ Inc. antiqua (Corporate Site) https://www.antiqua.me/