If we turn back the clock even further to 1697, when Yu Yonghe came to Taiwan to mine sulfur, as his boat sailed up the Tanshui River, flanked by mountains, on arriving at Kuantu he was amazed to see a huge lake--the fabled Taipei Lake!
時光若倒帶到康熙年間（1697 年）郁永河來台採硫時代，當他乘船從淡水河口一路而上，穿過兩山夾峙的水道抵達關渡時，還曾驚見一片汪洋大湖（傳說中的台北湖）呢！