Mermaid Party Ideas
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Make a splash with these creative Mermaid Party Ideas! From fun activities and decorations to delicious ocean-inspired treats, find everything you need to throw an unforgettable mermaid-themed birthday bash.

I’ve gathered all of my favorite Mermaid Party Ideas because, let’s face it—kids (and adults!) are totally enchanted by mermaids. There’s just something magical about these underwater creatures that makes them the perfect theme for a party.
Whether it’s the allure of the ocean, the sparkling scales, or the idea of exploring the sea, mermaids captivate everyone. So, if you’re planning a mermaid-themed bash, I’ve got you covered! I’ve put together some of the best ideas to help make your next mermaid party a splash! So, let’s dive in.
Fun and Engaging Activities for a Mermaid-Themed Party
When it comes to a mermaid party, the secret to keeping your guests entertained is to have plenty of fun activities that fit the theme!
One of my all-time favorites is hosting a Mermaid Sing-Along. Kids will absolutely love singing their favorite underwater songs, and you know they’ll be dancing to the beats, too! It’s the perfect way to get the party moving.
For something even more exciting, you can organize a Mermaid Scavenger Hunt. Hide seashells, “pearls,” and little treasures around the party area. The kids can search for these hidden gems, which keeps them entertained while letting them feel like real mermaids on a treasure hunt!
And don’t forget the mermaid crafts! Set up a Craft Station where kids can make mermaid crowns or sea creature masks. They’ll love wearing their creations for the rest of the party, and it adds a fun, interactive touch.
If you want to add something extra, I’ve got some Mermaid Affirmation Coloring Pages for kids. These are a fantastic way to keep little hands busy during a quiet moment, and the mermaid designs will be a hit!
Types of Decorations for Your Party
Decorating for a mermaid party is as much fun as the party itself! There are so many ways to bring the magical undersea world to life. Mermaid Decorations can turn any space into a sparkling underwater paradise.
One idea I love is creating a Balloon Arch that mimics the colors of the ocean—shades of blue, purple, and a hint of seafoam green. A balloon arch makes a stunning backdrop for photos, plus it adds an instant wow factor to the party decor.
Another favorite of mine is using under-the-sea centerpieces for the tables. Think mini fish bowls filled with colorful gravel, seashells, and plastic fish. These little details enhance the theme and add a playful touch to your space.
Don’t forget to add banners around the party area—whether above the dessert table, on the walls, or at the entrance to greet your guests. To tie everything together, you can also use mermaid-themed tablecloths, plates, and cups. These details will make the party feel like it’s happening beneath the waves!
Themed Food Ideas
No mermaid party is complete without some sea-inspired snacks! Here are some creative food ideas that will have your guests diving in for more:
- Mermaid Popcorn: Add a touch of magic with popcorn drizzled in blue-white chocolate and topped with mermaid sprinkles.
- Mermaid Jello Cups: Blue raspberry jello pairs beautifully with the crunchy, fruity Nerds candy for a playful, underwater effect.
- Mermaid Party Board: Combines sweet treats with a magical under-the-sea aesthetic, perfect for a mermaid party.
And if you’re looking for something even easier to serve, I recommend making Mermaid Rice Krispies Treats. Add some colorful icing, and you’ll have a sea of mermaid-themed treats that are both cute and delicious!
More Mermaid Fun
Make Mermaid Sugar Scrubs that can be given as party favors or a fun craft activity. They’re easy to make, and you can package them in cute jars with sparkly labels.
And don’t forget to make your Mermaid Playlist! Fill the air with tunes like “Under the Sea” from The Little Mermaid and other ocean-inspired songs. It’s the perfect soundtrack to a magical mermaid bash.
Mermaid Party Favors
Send your guests home with a little mermaid magic! Here are some creative and fun mermaid-themed party favors:
- Mermaid Slap Bracelets – Fun and colorful bracelets that snap around the wrist, a hit with kids of all ages!
- Mermaid Slime – A sparkly, purple-blue slime that makes for a fun and interactive take-home favor.
- Mermaid Pastel Bubble Wands – Shimmering bubble wands in soft pastel hues, perfect for a magical bubble-blowing experience.
- Under The Sea Mermaid Temporary Tattoos – Cute and colorful temporary tattoos featuring mermaids, seashells, and ocean creatures for a bit of extra flair.
Remember, the key to hosting a magical mermaid party is to have fun and let your creativity shine with enchanting decorations, delicious ocean-inspired treats, and whimsical party favors!
Fun-Filled Mermaid Party Ideas
Want even more mermaid inspiration? I have some additional ideas that will make your mermaid party unforgettable! With all these fun activities, decorations, and delicious treats, your fabulous mermaid party that your guests will never forget! Get ready to make your mermaid party a splash!
These ocean-inspired jello cups bring the magic of the sea to your table! With layers of vibrant blue and shimmering toppings, they’re the perfect treat for your little mermaids.
Sweet, salty, and sprinkled with a little mermaid magic! This colorful popcorn is coated in candy, pearls, and a touch of shimmer to make it a must-have party snack.
A snack board fit for an undersea celebration! This creative charcuterie spread is loaded with ocean-themed bites, making it a showstopper at any mermaid party.
For the adults at your party, these mermaid jello shots add a fun and festive twist! With tropical flavors and glittery hues, they’ll bring the ocean vibes to life.
Let every guest feel like an ocean princess with a dazzling mermaid crown! Perfect for dress-up, these DIY crowns add a whimsical touch to your under-the-sea adventure.
Swirls of dreamy frosting, shimmering sprinkles, and adorable mermaid tail toppers—these mermaid cupcakes will make a splash at your party!
Crunchy, sweet, and full of mermaid sparkle! This easy-to-make treat combines OREOs, pretzels, and chocolate for a snack that’s as beautiful as it is delicious.
Classic Rice Krispie treats get a mermaid makeover with pastel colors, edible pearls, and a sprinkle of ocean magic! These bite-sized goodies are perfect for little hands.
Cool off with this tropical-inspired mermaid mocktail! Featuring fruity flavors and a gorgeous pastel hue, it’s a fun drink for all ages.
A little self-care with an oceanic twist! This DIY mermaid sugar scrub will leave your skin soft, glowing, and smelling like a tropical paradise.
Light up the night with this mesmerizing mermaid jar light! A fun craft project that adds a glowing under-the-sea ambiance to your party décor.
A fun and interactive craft that doubles as a party favor! Kids will love creating their own shimmering seashell necklaces to wear and take home.
Over-the-top and totally Instagram-worthy! This mermaid freakshake is piled high with whipped cream, candy, and mermaid-themed toppings for a showstopping treat.
A sweet and crunchy snack with a magical mermaid twist! This colorful puppy chow is coated in candy melts and dusted with edible shimmer.
A creamy, dreamy dip that looks like it came straight from the ocean! Serve it with cookies, fruit, or graham crackers for a delicious mermaid-inspired dessert.
Turn any room into an under-the-sea oasis! This DIY mermaid wall décor is a perfect keepsake and makes a magical backdrop for your party.
Cool, refreshing, and full of mermaid vibes! This icy slush drink is swirled with ocean colors and bursting with fruity flavor—perfect for a summer mermaid bash.