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PLUNGE INTO THE FUN! 6 Ideas to Host an Underwater-Themed Birthday Party for Kids

Gleefully splash your child’s birthday with the themes that they adore most. Make it extra memorable for your beloved tiny tot!


It’s undeniable that natal day celebrations bring families, relatives, friends and loved ones closer together in a great celebration. When parents prepare a birthday party for their kids, they are as excited as the lovely little ones! Especially if it is a surprise event, all the meticulous planning and specifications are truly weaved with fantastic and loving hearts. 


The first thing that you must decide on for your child’s special day is the theme. Is there any particular concept that your darling loves? Is it a certain color? Cartoon character? TV show? Vibe? Begin there.


One of the most artistic themes that suit kids’ birthday parties is the UNDERWATER THEME! It’s the under the sea or oceanic theme as some may call. Truth is that organizing this motif is not very difficult at all because nature is vast and limitless. There are countless possibilities when it comes to decorating and setting this whole occasion! What’s more, this flexible theme can be both for males and females. 

If your daughter loves Ariel, the Little Mermaid, this is the perfect theme for her meaningful day! If your son’s favorite song is the Baby Shark, well, this theme is just ideal! If your child, at a very young age, is already into swimming and enjoying magnificent natural bodies of water, the underwater theme is the must-have for his/her next birthday fun! 


To help you arrange a harmonious event and sprinkle creativity to your kids’ name day, check out this list of 6 helpful ideas! Don’t forget to save notes and screenshots, so you’d be reminded!  



Selecting the venue is a crucial part of coordinating an underwater-themed event. Think whether or not you want it to be your own residence or somewhere else rentable. 


Given that you have a wide space in your house, you can use that to lessen financial costs because obviously, that’s exemplary for a big number of guests. On the other hand, you can look for an events place which you can embellish with your own underwater-themed ornaments.


For the adornments, you need functional walls in the venue to stick them on or ceilings to attach them to. Transparent balloons can be for replicating bubbles! Blue, green, gray and white colors and shades are alternatives for those. Aluminum foil balloons are super stylish and attractive! They come in various designs including shells, mermaid tails, dolphins and more! Foil curtains for backdrops can have diverse purposes -- the color green for sea grasses and seaweeds and the color blue for the gleaming waters and waves. 


If you want to take the oceanic theme to the next level, pay for the private use of a full resort or a party area in it. Moreover, the beach is a matchless choice! What’s most advantageous in these kinds of event locations is their raw enchantment and irresistible radiance! The scenic views transform any plainly decorated spots into a comely one. All are automatically present for all your loveable party photos! No need to buy and bring in lots of blings and fripperies to prettify the stretch. With all these, you can just allot more attention to other necessary aspects of your young’s party!   



Photo from Pinterest

Spice up the kiddie party with a livelier burst of cheer! Costumes for awesome aquatic vibes will never fail you!


If it's a happy YES, then start looking for garb stores that provide ready-made marine-themed costumes. Purchasing one or two for your teenybopper is easier and more convenient if the date is fast approaching and if he/she is not very picky about what to wear. Meanwhile, customized costumes are unrivaled! Your kid will have a birthday attire like no other on Earth!


Additionally, if you are game for a more distinctive and striking get-together, let the whole brood wear something along the theme! That makes for a more captivating set of family photos! Even simple headdresses and clothes’ props will do. Why not provide the event host, caterers and food servers their aquatic-looking outfits to blend in too?! That’s really making it a more thrilling event that’s evidently loaded up with tremendous effort!


Photo from Pinterest (Christin Nguyen)

There are lots of cake stores where you can instantly order a delectable birthday cake for your kid, but nothing beats personalized kuchens! 


Have a tasty cake freshly baked and peculiarly designed for your munchkin! Request it to be infused with the oceanic feels! Check out jelly cake options in cake shops that customize these delicious delights. It's going to be amazing to have the island jelly cake that absolutely features the underwater scene in clear jelly! Unquestionably wowing and astounding! 


You have the freedom to hand the bakers a visual plan, but if you are not confident about your creative juices for that and you want to go out of the typical cartoon options, just let them know the motif. These talented pastry makers will already know how to do the charisma! 


Well, what makes an underwater-themed birthday celebration more impressive and remarkable? Mouth-watering fresh seafood it is!


It is clearly going to be a blissful feast with a table full of drool-worthy fresh seafood. Large and red orange crabs, lobsters and shrimps, flavorsome mussels, oysters and scallops, crispy fried calamari and fish -- all these and more will give your youngster’s birthday a luscious slosh you won't regret! A joy-filled heart and a yum-filled tummy are always a peerless combination!


Hire professional mascots for your kiddo's birthday party. Marine animal mascots are famous, and they boost entertainment on this significant occasion!


Mascots are loved by kids, but some of them cry and get afraid when they see one. See to it that you hire those that do not look frightening to them. Sharks and alligators that look too bold might scare kiddie guests, so consider other marine animals that's friendlier for them such as different kinds of fish, crabs, seahorses, lobsters, starfish and more. But if you are going for the fiercer aquatic creatures, make sure they appear chummier than they are commonly known to be. 


In every birthday festivity, games cannot be left out! They spatter a great deal of sweet smiles and giggles in such a warm time! Pool games are incomparable! The enjoyment is without a doubt! 


There are numerous lists of water games you can look up online, but don't hesitate to come up with your tailor-made water-related leisure activities. Inform your guests to bring extra clothes if they want to get drenched in fun and water!


Make sure that everyone in your child's party observes safety rules to avoid mishaps and accidents in and around pools or beaches. Especially if your child is a toddler or a preschooler, their friends and your relatives of the same age must be strictly supervised. Lay down safekeeping game guidelines for your kid's party to be amusing and safe. Have heaps of fun while remaining relaxed and free from danger.




With well-conceptualized and readied ideas, an extraordinary kiddie birthday blast is possible! Your close relatives and friends can lend a helping hand and some clever thoughts to add brilliance to your programmes and patterns! Have a rejuvenating time filled with valuable memories! You can definitely let not just your dear kids but also yourself and your guests have an unforgettable and beautiful time with an underwater-themed birthday party!




Nicole Ann Pore is a writer, an events host and a voice over artist. She finds quality and well-researched writing as a worthwhile avenue to enlighten and delight others about things that matter. For her, it’s restoring and fulfilling to the heart and a great way to clear the mind while loading it up with fresh learning. Film critiquing and filmmaking are among her interests too. Giving all the glory to God, Nicole graduated Cum Laude from De La Salle University Manila, Philippines with a Bachelor’s Degree in Communication Arts.



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