Ballooning in Japan
A hundred balloons off one riverbed in Saga every autumn, a competition sport that is entirely about choosing altitudes, and an aircraft that is legally not an aircraft.
Japan is a mountainous, densely built country with very little open flat ground, which ought to make it terrible for ballooning. It has instead produced the largest balloon event in Asia and a competition scene that takes the sport extremely seriously.
Saga
The Saga International Balloon Fiesta is held every autumn on the flats of the Kase river, and it is the centre of Japanese ballooning by a wide margin. Around a hundred balloons launch together at first light, with hundreds of thousands of people watching from the riverbank.
The reason it is in Saga is the same reason any balloon event is anywhere: the plain is flat and open, it is sheltered between mountains and the Ariake Sea, and its autumn mornings reliably produce light winds that go different directions at different heights. That last property is not scenery. It is the playing field. See Saga and the Balloon Fiesta for the place itself.
What competitive ballooning actually is
It looks like a mass launch. It is in fact a precision sport, and the tasks are strange and specific:
- Judge Declared Goal — the organisers name a target; you get as close to it as you can and drop a small weighted marker.
- Hare and Hounds — one balloon launches first, lands, and lays out a target; everyone else has to find and hit it.
- Fly-In — you choose your own launch point somewhere within a radius, and come to a target set by the organisers.
- Minimum Distance — travel as little as possible in a set time, which requires finding layers that cancel each other out.
Every one of these is scored in metres from a marker, and every one is flown with no control except altitude. A pilot who wins has read the layers better than everyone else did, in the same sky, at the same time.
Under Japan's Civil Aeronautics Act a hot air balloon is not classified as an aircraft, so there is no national pilot licence for one. The sport is instead self-regulated: the Japan Balloon Federation runs its own licensing, and the practical rules — where you may launch, how you deal with landowners, what weather you stand down for — come from the community rather than the state.
Where people actually fly
Riverbeds, mostly. Japan’s rivers are wide, straight and bordered by public flat ground, which makes their banks the most reliable large open spaces in the country. Saga, Watarase, the Kitakami, the flats around Sano and Kakamigahara — the map of Japanese ballooning is largely a map of rivers.
The rest is Hokkaido, where the fields are big enough that the usual constraint simply does not apply.