If you have more than 3 days in Japan, you should consider going to Tsukiji, with Mariko :) She put extra effort to make sure we can come inside the tuna auction since it's limited for 100/150 people per day (forgot the exact number). You can see the Tuna giants while hearing the auctioneers chanting in inaudible voice. And with Mariko you got more than visit to Tsukiji, it's fun to chat about Japanese culture - and I got to see the magic of car being unlocked simply by making a phone call :))Mariko also accompanied me to see the inner and outer market, also to a sushi temple! Actually it's called Namiyoke Temple near Tsukiji, but you can give a token of appreciation to egg & prawn that has nourish you. Thanks for your hospitality Mariko, it was a memorable trip, a trip with a new friend in Japan. Sayonara :D