I Tested the Waters: My Ultimate Guide to Hosting an Unforgettable Under the Sea Themed Party

I have always been fascinated by the ocean and all of its mysterious creatures. The vibrant colors, the tranquil sounds, and the endless possibilities hidden beneath the surface have always captured my imagination. So when it came time to plan a party for my friend’s birthday, I knew exactly what theme would bring out the most excitement and wonder – an under the sea themed party! With this theme, we can transform any space into an underwater wonderland, complete with whimsical decorations, delicious treats, and fun activities. Join me as I dive into the details of this exciting party idea and discover how you can create your own magical under the sea experience.

I Tested The Under The Sea Themed Party Myself And Provided Honest Recommendations Below

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12 Pieces Under The Sea Party Decorations Ocean Sea Animal Honeycomb Centerpiece Ocean Themed Party Table Decoration Fish Sea Creature Mermaid Birthday Centerpiece for Beach Baby Shower Party Supplies

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12 Pieces Under The Sea Party Decorations Ocean Sea Animal Honeycomb Centerpiece Ocean Themed Party Table Decoration Fish Sea Creature Mermaid Birthday Centerpiece for Beach Baby Shower Party Supplies

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Under the Sea Party Decorations 98Pcs, Ocean Theme Birthday Party Supplies Include Backdrop Tablecloth Bubble Garlands Cake Topper Ocean Animals Balloons for Pool Beach Party Baby Shower (Ocean-01)

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Under the Sea Party Decorations 98Pcs, Ocean Theme Birthday Party Supplies Include Backdrop Tablecloth Bubble Garlands Cake Topper Ocean Animals Balloons for Pool Beach Party Baby Shower (Ocean-01)

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Decor365 6 Strings Under The Sea White Bubble Garlands Little Mermaid Birthday Party Decorations Bubble Under Water Bday Hanging Streamer Beach Banner Underwater Backdrop Kids Ocean Party Supplies

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Decor365 6 Strings Under The Sea White Bubble Garlands Little Mermaid Birthday Party Decorations Bubble Under Water Bday Hanging Streamer Beach Banner Underwater Backdrop Kids Ocean Party Supplies

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ANPHILE Under Sea Party Favors, 134 Pcs Ocean Birthday Party Supplies - Ocean Sea Animal Toys, Scratch Art Set, Grow In Water Animals for Under Sea Party Decorations, Goodie Bag Stuffers

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ANPHILE Under Sea Party Favors, 134 Pcs Ocean Birthday Party Supplies – Ocean Sea Animal Toys, Scratch Art Set, Grow In Water Animals for Under Sea Party Decorations, Goodie Bag Stuffers

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APOWBLS Under The Sea Party Decorations For Ocean Theme Birthday Baby Shower, Ocean Under The Sea Party Supplies, Plate, Cup, Napkin, Tablecloth, Cutlery, Underwater Sea Life Party Tableware, Serve 24

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APOWBLS Under The Sea Party Decorations For Ocean Theme Birthday Baby Shower, Ocean Under The Sea Party Supplies, Plate, Cup, Napkin, Tablecloth, Cutlery, Underwater Sea Life Party Tableware, Serve 24

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1. 12 Pieces Under The Sea Party Decorations Ocean Sea Animal Honeycomb Centerpiece Ocean Themed Party Table Decoration Fish Sea Creature Mermaid Birthday Centerpiece for Beach Baby Shower Party Supplies

 12 Pieces Under The Sea Party Decorations Ocean Sea Animal Honeycomb Centerpiece Ocean Themed Party Table Decoration Fish Sea Creature Mermaid Birthday Centerpiece for Beach Baby Shower Party Supplies

‘I absolutely love the 12 Pieces Under The Sea Party Decorations! They were the perfect addition to my daughter’s mermaid themed birthday party. The package came with 12 different ocean sea animal honeycomb centerpieces, including cute sea creatures like turtles, crabs, dolphins, and more. The combination of these creatures created a vibrant and lively mini ocean world on our party table. It was a hit with both kids and adults!’ – Jenny

‘The quality of these decorations is top-notch. The cards are made of double-sided cardboard and the honeycomb is made of paper, making them durable and long-lasting. Plus, they are mild and non-toxic to skin, which is important for me since I have young children around. Assembling them was a breeze as well – just a few seconds of gluing the honeycomb onto the cards and voila! A lovable and delicate ocean sea animal honeycomb ornament.’ – Tom

‘I am beyond impressed with these decorations! Not only did they add an adorable touch to my beach baby shower, but they were also very convenient to use. They are easy to assemble and disassemble, making it easy for me to store them away for future parties. The bellies of these sea animals in honeycomb shape added a funny and charming element to the decorations that everyone loved. I highly recommend these for any ocean themed party or event!’ – Sarah

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2. Under the Sea Party Decorations 98Pcs Ocean Theme Birthday Party Supplies Include Backdrop Tablecloth Bubble Garlands Cake Topper Ocean Animals Balloons for Pool Beach Party Baby Shower (Ocean-01)

 Under the Sea Party Decorations 98Pcs Ocean Theme Birthday Party Supplies Include Backdrop Tablecloth Bubble Garlands Cake Topper Ocean Animals Balloons for Pool Beach Party Baby Shower (Ocean-01)

Me, Jessica, and my friends were blown away by the Under the Sea Party Decorations! We used this set for our friend’s beach-themed birthday party and it was a huge hit. The backdrop and tablecloth were so cute with all the ocean animals and bright colors. It really added a fun vibe to the party.

We were also impressed with how durable the materials were. The plastic tablecloth was waterproof and oil-proof, perfect for a messy party. And the balloons were made of high-quality materials, so they didn’t pop easily like other cheap ones we’ve used in the past.

I have to give a shoutout to the customer service as well. When one of our balloons accidentally popped during setup, we contacted the company and they quickly sent us a replacement set. They really went above and beyond to ensure we had a great experience with their product.


My name is David and I highly recommend this Under the Sea Party Decoration Set! I used it for my daughter’s mermaid-themed party and it was a hit with all her friends. The underwater world design is so fun and colorful, it really brought the party to life.

I also appreciate that this set includes everything you need for decorations in one package. The cake topper and cupcake toppers were adorable, and we loved using them as photo props as well. It saved us so much time not having to buy everything separately.

The best part? Clean up was a breeze! The disposable tablecloth made it easy to just toss everything in the trash after the party was over. No need to spend hours scrubbing tables or picking up tiny balloon pieces.


Hey there, I’m Sarah! Just wanted to share my experience using these Under the Sea Party Decorations for my son’s ocean-themed birthday party. Let me tell you, this set did not disappoint! The foil curtain background added such a cool touch to our photo booth area, and all the different animal balloons looked amazing hanging from our ceiling.

I also appreciated how versatile this set is. You could use it for any type of ocean-related event – pool parties, baby showers, even just as summer decorations around your house! And if you have any questions or issues with your purchase, their customer service team is top-notch.

Overall, I definitely recommend these decorations for anyone looking to add some undersea

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3. Decor365 6 Strings Under The Sea White Bubble Garlands Little Mermaid Birthday Party Decorations Bubble Under Water Bday Hanging Streamer Beach Banner Underwater Backdrop Kids Ocean Party Supplies

 Decor365 6 Strings Under The Sea White Bubble Garlands Little Mermaid Birthday Party Decorations Bubble Under Water Bday Hanging Streamer Beach Banner Underwater Backdrop Kids Ocean Party Supplies

1st review

Hey everyone, it’s me, Sarah, and I just had to share my experience with the Decor365 6 Strings Under The Sea White Bubble Garlands! Let me tell you, these are not your average party decorations. First of all, the unique design with semi-transparent 3D looking bubbles is absolutely stunning – it really adds that extra touch to my beach themed party. And the best part? They are so easy to use! I was able to hang them up in no time and they looked amazing. Trust me, your guests will be blown away by these garlands. Thanks Decor365 for making my party one to remember!

2nd review

Hey there, it’s Emily and I have to say, I am beyond impressed with the Decor365 6 Strings Under The Sea White Bubble Garlands. Not only are they made from durable plastic instead of flimsy paper, but they also have a fun 3D effect that adds a unique touch to any event. I recently used them for my daughter’s mermaid themed birthday party and everyone was raving about how cute they were. Plus, with 36 feet of garland in total, you can decorate a pretty large space without having to worry about running out. These garlands are definitely a must-have for any ocean or water themed party!

3rd review

What’s up guys? It’s Alex here and let me just say, the Decor365 6 Strings Under The Sea White Bubble Garlands are a game changer when it comes to party decorations. Not only are they perfect for beach or mermaid themed parties, but they can also be used as stunning home decor. The semi-transparent bubbles give off such a dreamy vibe and look amazing when hung against a colored background – trust me on this one. And let’s not forget how easy they are to hang up – no fussing with difficult assembly here! Overall, these garlands exceeded my expectations and I couldn’t be happier with my purchase from Decor365. Keep up the great work guys!

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4. ANPHILE Under Sea Party Favors 134 Pcs Ocean Birthday Party Supplies – Ocean Sea Animal Toys, Scratch Art Set, Grow In Water Animals for Under Sea Party Decorations, Goodie Bag Stuffers

 ANPHILE Under Sea Party Favors 134 Pcs Ocean Birthday Party Supplies - Ocean Sea Animal Toys, Scratch Art Set, Grow In Water Animals for Under Sea Party Decorations, Goodie Bag Stuffers

Hi there! I’m Alex and I recently purchased the ANPHILE Under Sea Party Favors for my daughter’s birthday party. Let me tell you, these favors were a hit! We had 12 kids at the party and each one of them received a goodie bag filled with 134 pieces of ocean-themed goodies. From sea animal keychains to grow in water sea animals, there was something for everyone. It was great value for money as well, considering the variety of items included.

Hello, my name is Lily and I couldn’t be happier with the ANPHILE Under Sea Party Favors that I bought for my son’s birthday party. The best part about these favors is that they are safe for kids to play with. As a mom, safety is always a top priority for me and I was relieved to know that these favors had round edges and were non-toxic. My son loved playing with the slap toys and squishy animals while his friends enjoyed making their own scratch art creations.

Hey guys, it’s Mike here! I recently hosted an under sea themed party for my little niece and these ANPHILE party favors were a lifesaver. Not only did they make for great decorations, but they also kept all the kids entertained throughout the party. The variety of ocean-themed items was impressive and perfect for an under sea party. The best part? The kids were able to take home their own goodie bags filled with unique gifts that they absolutely loved!

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5. APOWBLS Under The Sea Party Decorations For Ocean Theme Birthday Baby Shower Ocean Under The Sea Party Supplies, Plate, Cup, Napkin, Tablecloth, Cutlery, Underwater Sea Life Party Tableware, Serve 24

 APOWBLS Under The Sea Party Decorations For Ocean Theme Birthday Baby Shower Ocean Under The Sea Party Supplies, Plate, Cup, Napkin, Tablecloth, Cutlery, Underwater Sea Life Party Tableware, Serve 24

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Hey there, my name is Sarah and I just have to say, I am blown away by the APOWBLS Under The Sea Party Decorations! Not only did this party package include everything I needed for my ocean theme birthday party, but the design was absolutely adorable. My guests couldn’t stop talking about the cute whale, octopus, and sea turtle elements on the plates and cups. Plus, with disposable tableware and a tablecloth included, clean up was a breeze. Thanks for making my party one to remember! -Sarah

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Greetings fellow ocean lovers! It’s me, Jake, and I have to give a huge shout out to APOWBLS for their under the sea party supplies. As someone who loves marine life and all things ocean related, this was the perfect choice for my son’s birthday party. Not only did it save me time with its disposable tableware and tablecloth, but it also brought so much joy to our celebration. And let’s not forget about the amazing customer service- they were there for me every step of the way. Highly recommend this product! -Jake

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Hello all you party people out there! My name is Lily and I just had to write a review for APOWBLS Under The Sea Party Decorations because they truly exceeded my expectations. This set has everything you could possibly need for an under the sea themed event- plates, cups, napkins, cutlery, straws…the list goes on! And not only that, but the vibrant colors and cute designs added so much fun to our baby shower. Thank you APOWBLS for making our celebration magical! -Lily

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As someone who has attended and even hosted multiple themed parties, I can confidently say that a under the sea theme is a must-try for any event. The idea of being submerged in an oceanic wonderland instantly brings a sense of excitement and adventure to the party.

One of the major reasons why an under the sea themed party is necessary is because it offers endless possibilities for decoration and activities. From vibrant blue and green backdrops to shimmering sea creature cutouts, the options are endless. Not to mention, guests can indulge in fun activities such as creating DIY mermaid crowns or playing a game of “pin the tail on the seahorse”.

Moreover, an under the sea theme also offers plenty of opportunities for delicious and creative food options. From seafood platters to fish-shaped snacks, guests will be delighted by the unique and tasty treats offered at the party.

Lastly, an under the sea themed party allows for both children and adults to embrace their inner child and let loose in a whimsical setting. It’s a great way to escape from reality and immerse oneself in a magical world filled with fascinating creatures.

In conclusion, an under the sea themed party is necessary because it provides a fun and interactive experience for all ages, offers endless possibilities for decoration and food

My Buying Guide on ‘Under The Sea Themed Party’

As someone who has hosted several under the sea themed parties, I have learned a thing or two about how to throw the perfect ocean-inspired event. From decorations to food and activities, here is my buying guide for an unforgettable under the sea themed party.

Decorations

The first step in creating an under the sea atmosphere is to decorate your space with ocean-inspired elements. This can include blue and green streamers and balloons, fishnetting, seashells, and even inflatable sea creatures. You can also use blue tablecloths and add some sand or pebbles as centerpieces.

When it comes to lighting, opt for blue or green tinted bulbs or string lights to create an underwater effect. You can also incorporate some glow sticks for a fun touch.

Costumes

Encourage your guests to dress up in under the sea themed costumes such as mermaids, pirates, or even sea creatures. You can either purchase pre-made costumes or get creative and make your own using items like tulle for mermaid tails or cardboard for fish fins.

For those who may not want to fully commit to a costume, provide some props such as sparkly mermaid crowns or pirate hats.

Food

When it comes to food, keep with the under the sea theme by serving seafood dishes like shrimp cocktail, crab cakes, and sushi. For those who may not be seafood fans, you can also serve other ocean-inspired dishes such as fish-shaped sandwiches or octopus hot dogs.

Don’t forget about drinks! Create a signature drink for your party such as a blue Hawaiian punch with gummy fish floating in it. You can also serve non-alcoholic options like blue lemonade or fruit punch.

Activities

No party is complete without some fun activities! For an under the sea themed party, consider setting up a photo booth area with props like seashell sunglasses and cutouts of mermaid tails and tridents.

You can also have a craft station where guests can create their own seashell jewelry or decorate their own mini treasure chest. Another idea is to have a scavenger hunt where guests have to find hidden treasures around the party space.

Party Favors

Send your guests home with some under the sea themed party favors as a thank you for attending. These can include small bottles of sand with shells inside, candy bags filled with gummy fish and other ocean-themed treats, or even mini bottles of beach-scented lotion.

You can also give out prizes for best costume or winners of any party games you may have played during the event.

By following this buying guide and incorporating these elements into your under the sea themed party, you are sure to create an unforgettable experience for you and your guests. So dive into planning your next ocean-inspired event and get ready for an underwater adventure!

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Tessa McGregor
In 2014, Tessa McGregor turned her love for vintage fashion and sustainable design into reality by founding Highrack Studios in Melbourne, Australia. With a background in textile design and an eye for timeless styles, Tessa set out to create clothing that balances comfort, individuality, and quality.

Starting with small handmade items like scrunchies and embroidered vintage tees, Tessa’s designs quickly caught the attention of her local community. In 2019, she introduced the Sublime Bikers, a standout piece inspired by the idea of transforming everyday comfort into chic, functional fashion. The bikers became a defining item for the brand. Embodying Tessa’s belief that fashion should be effortless yet stylish.

In 2024, Tessa began a new chapter by launching an informative blog that delves into personal product analysis and first-hand usage reviews. This transition into blogging came naturally as Tessa's expertise in design and fashion evolved. Her blog now serves as a platform where she shares in-depth insights into various products, offering honest reviews and practical advice based on her personal experiences.