One of the most delicious Unagi I've ever had in my life. Also, the whole atmosphere in the restaurant is just incredible - the entrance will just leave you speechless. First, you need to enter the gates with purple Noren (curtain) with the sign Kikusuiro. Then turn left to the one more gate with a white Noren. Follow the path through the Japanese garden and there will be the restaurant at the end.

My favorite on the menu is the "One Eel rice box with two different seasonings" (check the fifth photo).