If you guessed sumo, then you are right. It should be fun. I have been once before in Osaka about 10 years ago and all my memories are good. Sunday (Jan 23) is the last day of the Tokyo basho. I am excited to see Asashoryu (Mongolian yokozuna and also currently the best in Japan) in action. What can be better than spending a quiet Sunday watching a bunch of very large men push each other around. At Darin's request we will also be eating chanko nabe (the food of sumo wrestlers) before going. Should be good.