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WATER JUMP S-air

About

Imagine a place where winter extreme sports meet the summer cool of a swimming pool. S-air Water Jump is a leading training facility for freeriders and snowboarders in Japan, located in Tokorozawa, near Tokyo. The complex is considered the largest of its kind in the Kanto region, offering ideal conditions for practicing acrobatic jumps without the risk of injury on hard snow.

Water Jump S-air. Illustration.
Source: Kupi.com AI

Traveler photos:

The heart of the center is a massive pool with nine ramps of various sizes. There are giant ramps for flights up to 15 meters, as well as small "tables" just 1 meter high with artificial turf coating, perfect for those taking their first steps in freestyle. In addition to the jumps, the site features a modern jib park with rails and boxes, as well as a trampoline area for preliminary training.

A unique feature of the complex is an activity called Water Japon. This is an exciting hybrid of a water slide and a jump, allowing you to slide and soar into the air even without skis or a snowboard, experiencing the pure joy of free flight. During the summer months, night sessions are often held, when the pool is illuminated with lights, creating a unique high-energy atmosphere under the open sky.

Contacts

To confirm the current training schedule, availability in the school, or equipment rental terms, we recommend contacting the center's administration before your trip. S-air Water Jump is primarily active during the summer season, and some services may require advance booking.

Up-to-date contact information, including the official website and phone number, will help you plan your perfect training day without unnecessary delays.

How to contactContact
Address2964 Yamaguchi, Tokorozawa, Saitama 359-1145, Япония
Phone+81 4-2923-1119
Websitewaterjump.biz

What to Do

The main draw for visitors is jumping into the water on skis or a snowboard. You can choose a ramp according to your skill level: from small (2–6 meters) to impressive 15-meter ramps for true pros. For beginners, S-air Water Jump offers a special zone with artificial turf, where you can safely practice sliding and take-off techniques before your first landing in the water.

For those who prefer tricks on rails, there is a renovated jib park with wide boxes and six-meter rails. If you arrive without special equipment, be sure to try Water Japon — a unique attraction where you slide down a chute and soar upward without any gear. It's the perfect way to feel the adrenaline of flight just by wearing a wetsuit.

Additionally, you can train your coordination on the trampolines at the center or enroll in the local freestyle school, where experienced instructors will help you master the correct jumping technique in just one session. During the summer season on weekends, they host night sessions until 10:00 PM, turning the training base into a lively meeting spot for the extreme sports community.

Getting There

Reaching the sports complex from central Tokyo is quite simple. The most convenient way is to use the Seibu railway line. A train from Shinjuku Station will get you to Seibuen Station in about 60 minutes (a transfer will be required). From the station, it's just a leisurely 5-minute walk to the center's entrance.

If you prefer to travel by car, the address is: 2964 Yamaguchi, Tokorozawa, Saitama. The complex is located in the immediate vicinity of the popular Seibu Amusement Park, so you can always use the park's spacious parking lot. For navigation, you can use the facility's coordinates: 35.7687424, 139.4456434.

The cost of a train trip from the capital is approximately 2,000 yen, making it an ideal destination for a day trip from the metropolis in search of extreme sports and fresh air.

Nearest city: Tokyo

History & Facts

Although the exact opening date isn't widely advertised, S-air Water Jump has long established itself as a key venue in the Kanto region for the off-season training of skiers and snowboarders. The center was created in response to the demands of professional athletes who needed a safe place to practice complex acrobatics during the summer months when Japan's ski resorts are closed.

An important milestone in the center's development was the recent full renovation of the jib park. The creators focused on safety, adding wide boxes and modern PVC rails, which helped attract not only pros but also beginners. Another unique feature was the development of Water Japon — an innovative attraction that combines elements of a slide and a jump, which is considered a local Japanese achievement in the active leisure industry.

Today, the complex is integrated into the general entertainment zone near Seibu Amusement Park, creating a unique space where high-performance sports sit alongside family recreation. Thanks to its excellent transport accessibility, the center has become a magnet for students and office workers from Tokyo looking to swap their business suits for wetsuits.

Time Needed

To fully enjoy everything the complex has to offer, it is recommended to set aside 3 to 5 hours for your visit. This is enough time to go through the safety briefing, rent equipment, and complete a series of jumps from ramps of different heights or practice tricks in the jib park.

If you plan to take a full lesson at the local school (a standard session lasts about 60 minutes) or want to combine your workout with some time on the trampolines and the Water Japon attractions, you should plan for 4–6 hours. Thanks to its proximity to the amusement park and the night sessions in the summer, many visitors choose to spend the entire day here.

Working Hours

The complex operates on a steady schedule, welcoming guests from 10:30 AM to 9:00 PM almost every day, except for Tuesday, which is a day off. It is important to consider the seasonal nature of the facility: the main period of activity falls during the warmer months, typically from mid-May to the end of October.

At the peak of the summer season, the schedule may be supplemented with night sessions, allowing you to train in the cool evening air. It is recommended to check the current calendar on the official website before your visit, as working hours may change slightly depending on weather conditions and public holidays.

DayWorking hours
Monday10:30–21:00
TuesdayЗакрыто
Wednesday10:30–21:00
Thursday10:30–21:00
Friday10:30–21:00
Saturday10:30–21:00
Sunday10:30–21:00

Nearby

A trip to S-air Water Jump is a great excuse to explore the picturesque surroundings of Tokorozawa. Just a ten-minute walk away is Sayama Park, where you can relax after an intensive workout by strolling along shaded paths. Nearby lies the majestic Lake Tama, offering stunning views of the water and surrounding greenery.

If you're interested in more than just sports, keep an eye on the Seibu Dome (Belluna Dome), located just a couple of kilometers away. This modern arena frequently hosts baseball games and large-scale concerts. The combination of extreme jumps and peaceful park strolls will make your day truly fulfilling.

NameDistance
Ghibli Museum13.8 km
Studio Tour Tokyo – The Making of Harry Potter18.2 km
Shibuya Coffee Bar25.6 km
Reserve Roastery Tokyo25.9 km
Shibuya Stream Bar26.3 km
Suga Shrine26.7 km
Blue Note Tokyo27.1 km

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