Shinshu Brave Warriors

, or , is a covered speed skating oval in the city of Nagano, Japan. M-Wave, which opened in November, 1996, was constructed for the speed skating events at the 1998 Winter Olympics. It was Japan's first International Skating Union (ISU) standard indoor 400m double-track, and only second indoor track speed skating in Japan. The other, Meiji Hokkaido-Tokachi Oval, is located in Obihiro, Hokkaido.

architectural structure

building in Nagano Prefecture, Japan