The Chinese National
State Guest House is at the East-North end of Yuyuan lake, where the Emperor's fishing terrace was located. The Guest House facility includes all of the buildings between Yuyuan lake and the two major streets to the East-North.
If you plan a state visit, the
address is Diaoyutai State Guesthouse; No.2, Fucheng Road, Haidian District. But then, your ambassador probably already knew that. Also, warn your treasury department: the
prices seem fit for an emperor.