Costume ideas for a sea party

Updated March 17, 2017

Somewhere beyond the sea is the perfect costume for your aquatic-themed party. When deciding on a costume to wear for a sea-related event, you can choose between going as a creature of the sea, someone who enjoys the sea or the sea itself. These sea-themed costumes can be created with old clothes and accessories, or you can purchase ready-made costumes in stores to achieve your desired look.


Make a fish costume. You can choose to purchase a ready-made fish costume or paint your face to resemble your favourite aquatic creature. Use fabric paint on a solid-coloured sweatsuit to add scales for a homemade costume.


Take several green fabrics of different shade and cut them into strips. Lay the strips over yourself or glue them to a T-shirt to become seaweed.

Coral reef

Paint several large pieces of styrofoam different tropical colours. Once dry, attach them to a blue sweatsuit using glue or Velcro. Once you have the costume on, paint a tropical fish onto both of your cheeks to go as the coral reef.


A simple starfish costume can be made using a hooded sweat shirt and matching sweat pants. You may have to keep your legs in a wide stance and your arms above your head for the costume to reach its full effect.


Go to the sea party as an invading human by wearing a wetsuit to be a scuba diver or a sailor suit for a man or woman of the sea. Cover a pirate costume in seaweed and hold a piece of broken wood representing your destroyed ship to become a less than fortunate inhabitant of the underwater world.


Attend the sea party as a mermaid or merman. A piece of sequinned green fabric wrapped around your legs can create an instant set of fins. Women can attach seashells onto a bikini top, while men can go shirtless or wear a brightly coloured tank top.


Instead of dressing like a fish, go to the party dressed as a chicken or horse. Explain to party guests that you are a chicken of the sea or a seahorse. Keep a can of tuna handy for confused guests.


Paint a box to resemble a ship and cut a hole in the top for your head to fit through. Or try to recreate the Titanic as a costume and bring a guest covered in white styrofoam to act as your iceberg.

The Beach

Apply glue to an old swimsuit and then pour a mix of sand and gold glitter over the material. Your resulting costume will be a sandy beach.

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About the Author

Dan Chruscinski has written pieces for both business and entertainment venues. His work has appeared in "Screen Magazine" as well as websites such as Chruscinski graduated in 2006 with a degree in English literature from Illinois State University.