Tsai Chia-yang explains that the tide range here along the central coast is the greatest anywhere in Taiwan, because it's where the Philippine current from the south meets the ocean current from the north. They bring in a lot of seawater, and as both tides roll out, they also pull a lot of water with them.
蔡嘉揚解釋，台灣西海岸的中段潮差特別大──漲潮時來自南方菲律賓的洋流與北方南下的洋流交會於此，帶來大量海水；退潮時兩股洋流又把海水帶走。