In the Northeastern corner of lake region of Summer Villa. It is a main source of water of the lake of mountain villa. It is welled up that spring four flows in it, converge into a thousand qings of bluish waves, of long standing and well established. In severe winters, the transpiration of hot gas, there are radiant forms; Limpid and sparkling and crystal-clear, cold in summer to pierce the bone of skin. The emperor of the Qing Dynasty has praised it: ” famous spring also large to look at, if this has been headed by ” . The lakeside sets up a natural stone, carve ” spring of Rehe ” on Three beautiful big characters. Source on it is in here Rehe spring, be gushed out from underground limpid spring,let’s flow through, settle lake, Ruyi Lake, at lake, last lake, flow out from five – hole floodgate in silver Hunan department, remit the military strong river along the long dyke. So, once a tablet of tree by the spring in 1933, carved ” Rehe ” on Two words, are regarded as in the world the shortest river is listed in ” large Great Britain’s encyclopaedia “, the name is raised in generation for the moment.