[Sangetsu]

If you are spending any time in Tokyo, you can probably visit the sumo "stables" near Kinshichiro. They are walking distance from Asakusa, and they often have training matches.

Make sure to try "chanko-nabe" when you are here. It's what sumo wrestlers are fed every day, and it's very good. The best place to get it is a restaurant called "Chanko Dining".