Fifteen years ago, the Ilan County government hired the Japanese design firm Atelier Zoo to landscape Tungshan River. Chief designer Kuo Chung-duan told the county government that before beginning work on the project, she would need one year to observe and understand how the river is affected by the four seasons.
十五年前，宜蘭縣政府延請日本象集團來設計冬山河，主要設計者郭中端要求縣府給她一年的時間來觀察冬山河，藉以瞭解冬山河的四季變化，再開始設計，沒想到宜蘭縣政府也真的答應了。