01 / Uetsuki no Kaku-dohyo (Square Sumo Ring)
The square ring still in useis said to be the only one in Japan.
Because the ring is square, it is called the kaku-dohyo (square ring), and its sumo is written 角力. Every year Shoo Kita Elementary School in Uetsuki-naka holds a sumo tournament on it; in 2025 about 200 pupils took part. It is said to be the only such ring in Japan that survives and is still in use.
- Pupils offer a sumo tournament every year
- 2025: about 200 pupils took part
- Location: Uetsuki-naka, Shoo