Tainan attractions - Wushantou Reservoir ◆ Wushantou Reservoir Located the the Rokko area and Guantian area at the junction formed meandering shoreline overlooking empty, as if like a turquoise coral reefs, it is known as the vistas .The the Wushantou Reservoir is then Jia nan the most important one of the water conservancy project, early reservoir systems in the world, was the order to Chiayi plain agricultural irrigation, a plan completed by the hydraulic engineer in Japan Hatta.After the completion of the construction, not only the period of Japanese rule of Taiwan s largest reservoir, the top of the reservoir water storage dam is the world s only semi-water erosion and deposition embankment dam structure, its special place in the history of the reservoir s construction.