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Solabase logo with blue design and text on white background.
予約する

The Guesthouse Where You Can Fly a Hot Air Balloon​

On the edge of the Watarase Wetlands in Kazo, Saitama​

A hot air balloon free-flying over the Watarase Floodplain.

FreeFlight

Ride the wind up to 1,000 metres. A full flight, the way ballooning was meant to be. ¥42,900 / 30–45 minutes in the air

Two passengers in a hot air balloon

PrivateFreeFlight

The whole sky, just for you. Made for proposals and anniversaries. From ¥129,000 (up to 5 guests) / 30–45 minutes in the air

Hot air balloons performing tethered flights

Tethered Ride​

Children, wheelchair users and pets are all welcome. A hands-on balloon session where everyone floats together. ¥12,900 / no age limit · minimum 4 participants

A Home Base for a Life Spent Playing in the Sky

OLABASE is a guesthouse and glamping site run by hot air balloon pilots. This is where your flight begins.

Shinnosuke Imamura, owner of SOLABASE

What's On

熱気球から手を振る乗客

No booking required

Watarase Wetlands Tethered Balloon Week

Mon 28 September – Sat 3 October 2026, 8:00–11:00
Rise to a height of 30 metres in a balloon held by tether lines. No reservations — walk-up registration on the day only. ¥2,000 for adults, ¥1,000 for elementary school children and younger. Same-day flight status is posted on the event page.
Details & flight status

News

Recommendations for solo women

The Winning Balloon Club's hot air balloon experience was featured in the sixth episode of TV Tokyo's Drama 25 "Solo Active Girls' Recommendations."

Nippon Television drama "Ensemble"

Winning Balloon Club provided filming support for the double balloon date scene in episode 3 of the NTV drama "Ensemble," starring Haruna Kawaguchi and Hokuto Matsumura.

Flight &Room Set

Book your balloon flight and your stay together, at a better price.

  • ​ A better price than booking the flight and the stay separately

  •  Change your dates as many times as you need, for up to a year

Hot air balloon experience
Hot air balloon experience and glamping (twin room)
Hot air balloon experience and glamping (bonfire)
Hot air balloon experience

Gift Ticket

Give someone you love the feeling of leaving the ground.

  • The recipient picks their own date

  • Perfect for surprises and special occasions

What Our Guests Say

A selection of reviews left on Google Maps.

I looked at the website over and over, unable to make up my mind. In the end I trusted the instinct I felt the moment I saw the balloon — I want to be up there — pushed my nerves aside and booked, on my own. I'm so glad I did. The staff were kind and explained everything carefully, so by the time we were inflating the balloon my nerves were gone and I was one hundred percent excitement.

Solo traveller

Rain was forecast for our original date so we postponed, and even then the phone and email support was thoughtful. It was our first time in a balloon, but they let us help with everything from setting up to packing down, and it felt like we flew together as a team.

Family of three, flight + stay package

The weather was perfect and it turned into the best flight we could have hoped for. With the crew's help I also pulled off the proposal. It's a memory we'll carry for the rest of our lives.

— Private flight, used for a proposal

Private flight, used for a proposal

Read all reviews on Google Maps

Access

Location

1663-1 Onobukuro, Kazo City, Saitama 349-1202, Japan About 25 minutes from Kazo IC on the Tohoku Expressway. Free on-site parking. About a 10-minute walk from Yagyu Station on the Tobu Nikko Line.

Check-in/out

Check-in: from 16:00 (self check-in after 18:00) Check-out: by 11:00

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