Bolshoi Ussuriisk Island in the Heilongjiang or Amur river, at mouth of the Ussuri River opposite Khabarovsk / same as Heixiazi Island 黑瞎子島|黑瞎子岛[Hei1 xia1 zi5 Dao3]
lit. there is heaven above, and there is 蘇杭|苏杭[Su1 Hang2] below (idiom) / fig. the beauty and affluence of Suzhou and Hangzhou is comparable with heaven