It is said that each time Matsu's birthday comes up, sea creatures large and small, even whales, will swim near to the Empress of Heaven Temple in the Pescadores to pay their respects. There is also a legend that when the Matsu Temple at Kuantu was completed, 10 million sea creatures paraded up the Tamsui River to pass by the front of the temple in review.
傳說每逢媽祖誕辰，大小魚群，包括鯨魚都會到澎湖天后宮附近朝拜；台北關渡媽祖廟在峻工時，也傳有千萬魚蟹，順淡水河魚貫到廟前巡游。