The reservoir's nickname, Coral Lake, originates from the zigzagging shoreline created by the flooding of numerous small hills.
It remains one of the largest reservoirs in Taiwan by surface area.
The dam was constructed using the 'earth dam' method, utilizing a core of clay and layers of sand and stone without the use of reinforced concrete.
The memorial park contains a bronze statue of Yoichi Hatta, which is traditionally cleaned during an annual memorial ceremony in May.
The reservoir was critical to transforming the Jianan Plain into one of Taiwan's most productive agricultural regions.
Wusanto Reservoir, also known as Coral Lake, is a significant irrigation infrastructure project designed by Japanese engineer Yoichi Hatta and completed in 1930. The reservoir features a distinctive semi-circular shape that mimics the appearance of coral reefs when viewed from above. It functions as a multipurpose leisure area, incorporating water-based recreation, parkland, and historical commemorative sites. The facility includes a swimming pool complex and extensive grounds integrated into the reservoir's landscape. A dedicated memorial park honors the historical engineering collaboration involved in its construction. The site serves as a vital water source for the Jianan Irrigation System, the largest of its kind in Taiwan. Visitors can walk across the dam structure to observe the water management system and reservoir views.
The crest of the dam overlooking the central body of the reservoir.
Bring sun protection and insect repellent, as the park features significant open water areas and wooded trails.
Wear comfortable walking shoes to navigate the dam area and the memorial park paths.
Visit the Hatta Yoichi Memorial Park nearby for a more comprehensive historical context.
Do not attempt to swim outside of designated, supervised swimming pool areas.
The water park and swimming facilities are typically seasonal and often closed during winter months.
