Hosting an under the sea party for kids is so much fun! There are plenty of creative mermaid crafts, food, and party decor you can bring to life in your own home. Keep reading to learn how you can host the best under-the-sea party kids love!
Under the Sea Party Theme Ideas
There is a variety of mermaid and under the sea party invitations online. This mermaid invitation can be customized and used digitally.
Under the sea party food ideas
Create a festive party food spread that guests will go crazy over. Have a variety of sweet and salty food items for guests to munch on.
Under the Sea Party Appetizers
Peanut Butter and Jelly Sandwiches – cut with a whale cookie cutter. I almost made Peanut Butter and Jellyfish Sandwiches, but I ran out of time.
Turkey and Provolone Cheese Clam Sandwiches– cut with a shell cookie cutter
Snack Beach Pails
Filled with Goldfish, Cheez-Its, and Potato Chips! Shop beach pails here.
Under the Sea Dessert Ideas
Mermaid sugar cookies, cupcakes, and a treasure box mini cake for the birthday girl’s cake. I made paper mermaid tails using my Cricut Explore Air™ machine to add some flair to the cupcakes.
More Treats for Your Party
Mermaid Party Punch
Serve guests this non-alcoholic blue beverage using this simple punch recipe.
Blue Party Punch ingredients
- 1 gallon Hawaiian Punch, blue
- 46 oz. pineapple juice
- 2 liter lemon-lime soda
Combine all ingredients and add ice. Place in beverage dispenser to serve. It’s that easy!
For a budget-friendly approach, shop at a dollar store for tubs, buckets, and bubbles (for party favors).
Shop party items:
- Large Party Tubs – for drinks, food, party favors, and more!
- Shells – scattered throughout the party spread.
- Fish Net Party decoration – place on tables. +
- Mermaid Plastic Drink Pitcher – simply adorable and colorful!
- Bright tablecloths
- Large bubble wands – for party favors
- Mermaid party collection – includes tablecloths, paper plates, plasticware, and more!
- Iridescent Mermaid Party supplies – teal and pink party supplies! Simply gorgeous!
Under the Sea Theme Party Entertainment
Consider setting up a small inflatable outdoor pool or inflatable water slide for kids to play outdoors. A place for kids to play with sand art, make seashell photo frames or blow bubbles is always fun!
Magnetic Fishing Area – With this party toy kids can go fishing for sea creatures. Place in a plastic pool mentioned above.
Under the Sea Party Favors
Make party favors for guests to enjoy once they get home. These party favors were made with “Thanks for making my party a splash!” gift tags!
Download the vintage Under the Sea Party Favor Labels
The party was a huge success for our family and I know it will be for yours too! Cherish these times before they grow up and are “too cool” for mermaids!
If you love this party idea, you will love all the ones I am pinning right now. Follow me on Pinterest for party ideas, games, and decor ideas. Grab our free birthday party planner to keep organized for your next party!
Thanks for the great ideas, we’re celebrating my daughters first birthday this weekend and it’s mermaid theme(just like her baby shower). Hoping it turns out as cute as yours!
Hi! Love all the decorations you made and excited to try some of these out for a baby shower I’m hosting. Can you please give more details on how you made the cupcakes? Are those ground graham crackers on top?