A naval crown is a special decoration made to look like a crown and it is given to a person who is really good at sailing big ships. The crown looks like it has the masts and sails of a ship on it, and there are little tower shapes that stick up, like the ones on a castle. The crown has a special meaning because it was given to sailors who were really brave and did very important things for their country while fighting on the sea. You might see a picture of a naval crown on a ship's flag, or in a book about sailors and the sea. It's a special way to honor and celebrate the best sailors!