1. 1. Determine the theme of seafood as the design concept, which is reflected in all aspects of the wedding banquet, such as the decoration of the wedding venue, the design of the menu, and the choice of the wedding dress.

2. Then, in the decoration of the wedding venue, you can use marine elements, such as blue, white, green and other colors, seaweed, shells, starfish and other marine elements to create a romantic, fresh and natural atmosphere.

3. In the menu design, you can choose a variety of seafood dishes, such as lobster, hairy crab, conch, scallop, abalone and so on. According to the scale and demand of the wedding banquet, you can choose buffet, Chinese food or western food to meet the taste needs of the guests.

4. Finally, some ocean-themed links can be added to the wedding reception process, such as the promotion of seafood appetizers, the introduction of marine cultural knowledge, the performance of marine music, etc., so that guests can experience more marine elements and culture in the wedding reception.