By the 1970s, Taiwan had entered the era of developing large-scale industrial parks, and the situation had drastically changed. Many huge industrial parks were within six kilometers of the shore, and the seawalls and dikes protruded 30-40 meters out into the sea. Intensively developed areas of coastline extended for ten or 20 kilometers. "It was the world's largest coastal development plan," says Kuo Chin-tung.
而到了民國 60 年代的大規模海岸工業區時代，情況丕變，許多大型開發計劃離海岸僅僅 6 公里，海堤、防波堤則推出到海中水深三、四十公尺處，開發的海岸線動輒綿延一、二十公里，規模之大，「堪稱世界第一」，郭金棟感嘆地說。