Legend has it that when Zheng Chenggong first arrived in Taiwan, he once set up two fortresses, the Gentle Breeze Court and the Bright Moon Pavilion, on the upper reaches of Shuang Creek, where he drilled troops and hoarded grain.
傳說，鄭成功初至台灣，曾在美濃溪的上游雙溪設「清風院」和「明月樓」練兵囤糧。