以水为主体，寓意着正入洞寻找范蠡，使大家对慕蠡洞充满好奇之感，这里是观瀑亭，在这里游客即能休息，又可观赏到对面耸立的巨石和飞泻的瀑布。飞泻的瀑布好象在欢迎大家的到来。
Guanpu Pavilion (pavilion to watch the waterfall):Now please look forward at the pavilion named Guanpu Pavilion, meaning a pavilion to watch the waterfall. On the cliff are four big Chinese characters, “Dong Tian Sheng Jing”, written by Chen Congzhou, the famous gardening expert, meaning a cave with wonderful scenery. Opposite to it is a waterfall splashing down with great momentum.
観瀑亭:ほら、前に亭があります。それは「観瀑亭」であります。壁に刻まれた「洞天勝境」は園林大家の陳従周先生が書かれたのです。向こう側に雄大な滝があります。