Hailing Island was originally named Luodao (or Luozhou, Luozhou) because its terrain is really like a horizontal conch shell. Later, with the change of geography, Hailing gradually rose from the sea and became a veritable "mountain in the sea" with endless vision. This is called Hailing. There is a book to prove it: "Hailing was originally named Luozhou, also known as Luodao. The highest mountain is Caowang Mountain, and there are rocks on the mountain. It can't be caused by manpower, but it sticks to the oyster shell. " It can be seen that the top of Wang Cao is still the sea, and the hail has gradually changed from "little conch" to "big hail".