Japan is the origin of many powerful martial arts such as Judo, Aikido and Kyudo. To refine your techniques and sportsmanship in the most proper fashion, nothing beats doing it in an orthodox "Dojo" (training hall) here in Japan.
In Tokyo, there are many sports facilities around Sakura House including Dojo, sports clubs, culture centers and more. Some of the more famous sports facilities are listed below on Google map, please check it out.
スタジアム Stadium
