Tides and northeasterly seasonal winds have formed sand dunes along the beach at Laomei, and between the beach and the water, this special formation was sculpted.
由於受到東北季風波浪搬運及堆積作用，在老梅附近形成海岸沙丘，而介於海灘與海水間則產生一種特殊的地質景觀──「石槽」。