The historic Hulupi (葫蘆埤) was initially excavated in the 1770s for irrigation and water storage, and was originally called Fan Zi Tian Pi (番子田埤). Later, after a road was built through it, the reservoir resembled a gourd tied with ribbon, and was renamed Hulupi, meaning "gourd wall". In the surrounding water caltrop fields there are often farmers rowing small boats, and the “Fragrance of Water Caltrops and Shadows of Boats” (菱香舟影) scene became one of the eight major attractions of Xin Nan Yin (新南瀛). The pheasant-tailed jacana breeds in the favorable ecological surroundings. Passengers on the Taiwan High Speed Rail into Tainan will surely catch a glimpse of the red suspension bridge, extending like the arc of a water caltrop over the lake that is full of the sound of frogs. See the egrets and jacanas flying past the red suspension bridge, the fields full of water caltrops beautifully reflecting the colors of the surrounding fields, and hear the continuous frog sounds, evidence of the park's healthy ecology. Step onto the island at the center of the lake and appreciate the view in all directions from the center; the viewing platform overlooks the whole extent of the water. Follow the Huanpi walkway around the lake for an excellent way to enjoy this beautiful scenery.