37+ Cutest Under The Sea Baby Shower Ideas For Boys & Girls

Planning a baby shower with an under-the-sea theme is a fun and creative way to celebrate the upcoming arrival of your little one.

Whether you’re expecting a boy, girl, or keeping it gender neutral, this theme offers endless possibilities for decorations, food, and entertainment that will captivate your guests.

From pink mermaid-inspired decorations for girls to boys and girls’ ocean-themed setups, you can easily tailor this theme to fit your vision.

In this article, we’ll explore a variety of ideas for decorations, including boho-style centerpieces, gender-neutral designs, and undersea birthday party inspiration that can be used for baby showers.

We’ll also cover exciting food options such as mermaid appetizers and ocean-themed snacks for kids.

Whether you’re looking for a classic mermaid party for girls or more neutral décor for boys and girls, we have all the ideas to make your baby shower unforgettable.

Stay tuned as we dive into these creative suggestions, complete with beautiful images to inspire your special day!

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37 Under the Sea Baby Shower Ideas

1. Under the Sea Baby Shower Table Sign

2. Salt Water Taffy Jar

3. Coral Candy Sticks

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4. Mason Jar Centerpiece

5. Baby Breath and Sea Shell Centerpiece

6. Under The Sea Cookies

Under the Sea Baby Shower — Instagram @custom_cookies_by_kristina

7. Whale Baby Shower Cake

8. Under The Sea Popsicles

9. Under The Sea Strawberries

10. Sea Turtle Cake

11. Under The Sea Ice Cream

12. Pastel Under The Sea Cookies

13. Octopus Popsicle Cakes

14. Under The Sea Baby Shower Favors

15. Sea World Balloon Decoration

16. Baby Boy Anchor Cake

17. Under The Sea Table Decoration

18. Mermaid World

19. Under The Sea Baby Shower Sign

20. Candy Baby Bottles

21. Diaper Cake

22. Sea Snails Party Food

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23. Fish Tail Sequins

24. Paper Jelly Fish Lanterns

25. Crab Croissant Sandwiches

26. Chocolate Filled Fish

27. Octopus Veggies

28. Adopt a Shark Favors

29. Sea Pearl

30. Sea Water

31. Under The Sea Popcorn

32. Treasure Chest Favors

33. Mermaid Popsicles

34. Let’s Be Mermaids

35. Under The Sea Baby Gift Set

36. Beach Mini Muffins

37. Mini Diaper Cakes

38. Under the Sea Macarons

39. Seaweed Decoration

Ocean-themed invitations: Setting the Scene

The first step to planning any baby shower is sending out the invitations, and for an Under the Sea theme, the options are wonderfully creative.

Design Ideas: The invitation cards can portray a variety of sea animals, be it a whale/ a dolphin/ a turtle or a cute octopus. Bubbles, waves, seashells, etc. can also be added to strengthen the theme further. One can also choose a plain blue and turquoise color on the invitation cards, or include some green and yellow for a lively effect.

Personalization: It would be a nice touch to add on such phrases like; “Grab your swimming gear and join us for a Whale of a Time!” or “Join us in Making a Splash as we Welcome our Little Fish!” to ease guests into the mood. If the baby’s name is known or initials then it can also add value to the invites.

DIY Touches: If you wish to spoil the guests a bit further, you can do it by enclosing an envelope with a small seashell or a piece of netting which is a clever way to let your guests in on the magic beneath the waters that they will witness at the shower.

Under the Sea Decorations: Constructing the Mood of the Ocean

When it comes to the venue makeover to an underwater paradise that is again dependant on the minute aspects.

In this section decoration ideas that will make the soon to be mom’s Under the sea baby shower feel like an adventure to the deep sea.

Color Scheme: Shades of blue, green blue and blue green should be used as base colors. White, calm and light green, and silver could be the additional colors which represent foam of bubbles, foam of the sea, and flora of the ocean.

Balloon Garlands & Backdrops: Form attractive arches of backdrop in blue-white balloon garland. These can also serve to hold a large ‘Under the Sea’ banner or can be arranged in such a way as to depict waves. Sea creatures or corals shaped metallic balloons are optional but you may add to for creative effects.

Hanging Decorations: To illustrate the silhouette of ocean waves, place various blue and green shades of the flowers, streamers or cutouts of tissue poms suspended dermis or ceiling. You can use these to make guests feel as though they are really submerged in the ocean by covering cutouts of fishes, seahorses, and jellyfishes.

Table Settings: Blue table linens or teal ones may be used and serve seashells, starfish and sand dollars among others on the surfaces for decoration. Place settings could include folded name cards embellished with tiny star fish or fish pot holders which would make the table settings more relating to the theme.

Creative Centerpieces: Anchoring Your Decor

Therefore, centerpieces form a very critical part of unifying your theme and creating attention vertically and horizontally on the tables.

Aquarium Centerpieces: Fill a fresh whole clean dry glass bowl with fresh water and decorative gravel with floating wax tea lights over this arrangement to create a mini aquarium. Fish and turtle plastic toys can also be added towards this direction. To make it even more decorative, some fake sea plants or coral would be nice to add too.

Coral and Seashell Displays: Center a piece of coral, like a seaweed necklace, in the table along with some seashells and starfish. One can even embellish it with some pearls or sea glass to lend panache to the arrangement.

Message in a Bottle: Take small bottles, discipline them with a few grains of sand and broken seashells and insert a lot of strip on a roller with a preamble – a message in a bottle. People can tag baby or parents’ names inside these wishes and they can become something worth to talk about.

Food Ideas: A Feast Suitable for an Ocean King

What is a baby shower WITHOUT the yummy food?

And even better, underwater a la carte is so much pose for creative menus.

Sea-Inspired Snacks: Include ‘Crabwiches’ in the menu (sandwiches arranged like crabs using crescent rolls for a shell and mini pepperonis for the eyes) or ‘Octopus Hot Dogs’ (slicing hot dogs at the ends which looks more like cooked sinewy tentacles). A veggie tray for example can be composed and the dip placed in the middle as if the latter was the sea in the middle of a coral reef.

Shells and Cheese: A quirky supper on the all-time favorite macaroni and cheese, shell elbows are particularly used to spice it up.

Seaweed Dip: Spinach or kale dip can also be creatively reworded into Seaweed Dip and enjoyed with blue corn tortilla chips or pita bread designed like fish.

Ocean Punch: This is very easy to prepare. You can make a lovely blue punch by mixing lemon-lime soda with blue Hawaiian Punch or blue Gatorade. For added fun add some gummy fish candy or Swedish Fish candy on top.

Cake: The Show-Stopping Sweet Treat

It is well known that one of the main attractions at a baby shower is the cake.

It being an Under the Sea theme, it can therefore be grand.

Ocean Layers: Choose a tiered cake covered with patterned fondant butter frosting of waves of different shades of blue, and decorated with fondant sea creatures, corals, shells, etc. ensuring the ocean bottom is completed.

Fish Bowl Cake: You may also consider a little more fun and make the cake in the shape of a fish bowl instead. The body of the cake may be iced in deep blue and fondantsmal- fish and sea weed may be masked inside and appeared to be floating up.

Cupcake Alternative: If you like cupcakes, it is best to decorate them with the ocean theme as follows – fondant star fish, fish with pearls in the clamshell, small fish, etc. and place it all on a tier stand for visual beauty.

The Small Finishing Touches: Adding The Last Detail

The minor accents can contribute greatly when it comes to the creation of an overall and truly distinct Under the Sea atmosphere.

Exit Gateway: At the entrance, a “Welcome to the Ocean” board made with shells, starfish, and seaweed and reading welcome will invite all.

DIY Fish Nets: Spread out fish nets in a cross-shape on the walls or on tables, and place some small stuffed fish or shells on them. This detail makes the room feel more incorporated into an undersea world.

Bubble Decorations: Balloons in variable shapes and sizes serve to create the sensation of floating bubbles scattered around the room. They can be arranged in clusters on near corners or placed all over the ceiling for an impact filled experience.

Final Thoughts

Have a whale of a time with an Under the Sea themed baby shower.

The beauty of an under the sea baby shower is that it is an easy theme that is rich in visual stimulation and room for a lot of creative exploration.

Everything from underwater designs on invitation cards and the room decor, the cake and interactive wall designs to rejoice the coming of a baby boy can be done in fun ways.

This engaging theme will leave you with wonderful memories and almost in the tragic sense effortless smiles and laughter with the addition of oceanic splendor in the baby shower whether you decide to do the decorations yourself or have them done by experts.