Dive into a magical underwater world with Meri Meri’s Under the Sea collection. Featuring enchanting marine-themed decorations from shimmering mermaids and playful sea creatures to elegant marine-themed garlands and party essentials, each item brings the magic of the ocean to life.
Perfect for birthdays, parties or imaginative play, this collection offers beautifully crafted designs that will captivate kids. Create an unforgettable celebration with ocean-inspired details. Read our fun mermaid party ideas blog post and download our fun mermaid craft!
Under The Sea Party Ideas and Gifts
Throw the ultimate under-the-sea birthday party with our eye-catching garlands, colorful party plates, and tableware with various sea creature designs – whether your little one loves sharks, octopuses, or even turtles, we have party supplies for every interest.
Sort by:
$18.00
Under-the-sea is a great place to be - especially as a statement birthday party theme. This cupcake kit allows you to introduce sensational sea creatures to your party table for...
$10.50
These amazing red octopus paper plates are perfect for kids under-the-sea parties, or for adult cocktail parties. The foil details give a wonderful shiny effect.
$14.00
Thrill your guests by turning the party table into a sea of shimmering sharks with these sensational paper plates!
$7.00
The octagonal shape of these paper plates, teamed with a soft cornflower blue on the front and back, makes them a stunning choice for your party or special dinner. They're...
$180.00
Add a bite of excitement to your party with the Fierce Shark Piñata from Mama’s Piñatas. Bold, playful, and unforgettable, this handcrafted shark brings ocean adventure to birthdays, beach parties,...
$5.00
Make a splash with this charming under-the-sea invitation, perfect for an ocean-themed birthday party, a beach celebration or any aquatic-inspired event. Simply add the details of your celebration, including the...
$24.00
We just love these toothy shark hats, perfect for an under-the-sea party or shark party. Why wear plain party hats when you can wear a shark and put the wow...
$22.00
Who says disposable cutlery can't make a statement? Forget the ordinary, our wooden cutlery sets blend practicality with style. They are ideal for picnics, garden parties, BBQs, camping adventures, or...
$9.00
The octagonal shape of these paper plates, teamed with a soft blue color on the front and back, makes them a striking choice for your party or special dinner. They're...
$7.50
Make your party table look dreamy with these summer sky blue napkins. They're beautifully designed with a stylish scalloped edge. They're perfect for a baby shower, birthday parties or to...
$9.00
The color emerald green is associated with nature, new beginnings, health and wealth. So these gorgeous paper plates, with their eye-catching octagonal shapes, are perfect for a garden party, baby...
$7.00
If you're looking to add a pop of color to your party table then you'll love these dreamy sea foam green paper plates! The color is on both the front...
$6.00
The color emerald green is associated with nature, new beginnings, health and wealth. So these gorgeous cups are perfect for a garden party, baby shower, a new home get-together, or...
$8.50
Our lobster napkins make a stunning decoration on a party table or are ideal served with drinks. They are perfect for an under-the-sea party, a cocktail party, a BBQ or...
These beautiful cream plates are made from commercially compostable bamboo and sugarcane pulp, offering an alternative to the traditional paper party plate. The neutral cream color is perfect for all...
$899.00
Warning: Your kids will beg to play on Smol Splash every day. This water bounce house turns any backyard into a summer oasis — for cooling down, bouncing big, and...
$649.00
This little went to the market and stayed home. The Market Splash is the ultimate all-in-one bounce house with a playful twist — where kids can bounce, slide, splash, and "sell"...
$88.00
These boots were made for sunset strolls and seaside dreams. Cute + comfy!! The Coral Cove Boots are designed in a soft coral-pink glitter — inspired by cotton candy skies...
$6.50
If you're looking to add a pop of color to your party table then you'll love these sensational sea foam green napkins! They're ideal for any celebration where you want...
$17.00
These beautiful plates are made from commercially compostable bamboo and sugarcane pulp, offering an alternative to the traditional paper party plate. They are dyed in a mint sorbet tone.
These beautiful plates are made from commercially compostable bamboo and sugarcane pulp, offering an alternative to the traditional paper party plate. They are dyed in a mint sorbet tone.