Easy Under the Sea Party Decorations

For my son’s ocean-themed 6th birthday we turned our dining room into an underwater oasis, with the ceiling being the surface of the water. It was so much fun and I’m here to share all the details and walk you through how to DIY Under the Sea party decor that will be total showstoppers and stay on budget- seriously! Just hang around I’ll make a believer outta you ;).

Under the Sea party decor hacks and ideas
Under the Sea party decor hacks and ideas

Under the Sea Party DIY Tablescape

I have done quite a few themed parties in my years, and I think this tablescape may have been my very favorite. I dreamt it up in the shower one day (isn’t that where all the good thinking happens?) and then could hardly wait until party day to see it all come together!

Create your own ocean landscape with this tablescape idea

I started with a base of brown craft paper to act as my “sand”. I then added a blue wrapping paper table runner. I kind of scalloped the edges (just with scissors) to give it more of a water-y feel rather than just straight lines. I used some green Easter grass to border the edge of the “water” for seaweed. I crushed graham crackers up to make some sand and I sprinkled that along the “beach front”. I got some seashells from dollar store and added them to the sand. Finally some gummy sharks and fish were swimming around in the water! I also cut some little crabs with my cricut and sprinkled them around like confetti. (and hey I found some here if you don’t have a cricut). And voila- you’ve made your own ocean landscape on your table.

Each place setting needed some scuba goggles of course!

At each place setting I had some ocean themed plates, napkins, a blue kool-aid and of course- some scuba goggles. These are actually safety goggles but I thought they doubled as nice scuba goggles. The birthday boy was also very insistent that we make our own donuts so that was also at each place setting. Basically you don’t want to visit this beach- it’s crab infested, shark infested, and did I mention the seaweed problem? 😉 Makes for a good centerpiece though!

Create your own ocean tablescape with a few household items
Create your own ocean tablescape with a few household items

The final detail was an anchor hanging from the chandelier- obviously. Who doesn’t have one of those? I cut it out with my cricut and hung it with some left over rope from our pirate party. It was the perfect touch!

Hang an anchor (no- not a real one) for the finishing touch to your ocean tablescape.

Did I mention we also had scuba tanks on each chair? They needed tanks to go with their masks of course! So I made individual scuba tanks out of soda bottles for all of our little party guests. For more details on how I made those check out the full party post.

Make your own scuba tanks with 2 liter soda bottles.
Make your own scuba tanks with 2 liter soda bottles.

Under the Sea Party DIY Wall Decor

These photos have gone absolutely bonkers viral on Pinterest, and I think it’s because this is such a dummy-proof, crazy easy, and almost-free decor idea that makes a big statement! Do I have you hooked? I know I said almost free because all you need is streamers, and you can get those from the dollar store. Ok, ok I guess you need some tape (or sticky tack) also.

Make your own seaweed decoration out of streamers- super cheap and easy.
Make your own seaweed decoration out of streamers- super cheap and easy.

It works best if you have two different shades of green, but of course you can also just do it all with the same color. I used sticky tack and adhered one side of the strip to the top of the trim, then just twist the streamer and adhere it to the wall once you’ve reached the height you want. Vary the heights and also the directions (see how some are going at an angle and some are straight up and down). Then for bonus points add some sea creatures swimming around. I cut these fish, seahorses and sea turtles with my cricut out of cardstock and just sticky tacked them to the wall. But you could also order something like this instead.

Easy DIY ocean party decor ideas
Easy DIY ocean party decor ideas

A fun finishing touch for our seaweed is I hung Easter grass from the ledge we have in our dining room wall- I think it’s a nice touch! It would work great over a fireplace ledge or something like that. Let it hang down and give that seaweed feel.

Clear balloons make such fun bubbles! I made two small balloon garlands out of clear balloons that I hung on either side of our dessert table. Be warned that clear balloons do not look clear when they are not inflated, but once I blew them up they were perfect little bubbles. Here is a great pack that has several different sizes- which is really key to a successful garland. Well that and this balloon garland strip– it make sit so easy.

Clear balloons make the perfect bubbles for your ocean party!
Clear balloons make the perfect bubbles for your ocean party!

Under the Sea Ceiling Decor

Hands-down the showstopper for our party decor was the ceiling decor. In order to create the effect that we were in fact under water I covered the ceiling with blue plastic tablecovers. I used the sticky tack again to drape them from one corner of the ceiling to the other in vertical rows covering the entire ceiling! I wanted really long strips to go across the whole ceiling so I bought it on a big roll so I could cut to desired length. The trickiest thing was how to adhere it to the ceiling. The uglue dashes ended up working the best of all the things I tried.

Create your own ocean surface with plastic tablecovers hung from your ceiling!

It’s important to hang them with a sort of swoop in the middle (not too tight to the ceiling) to let light in to create those good shadows. I used my cricut to cut the sharks, whales, sting rays and star fish out of black construction paper. You can use the slice tool to cut really large shapes and then tape the different parts together like a puzzle- so that’s what I did for the whales and sharks.

DIY Jaws Photobooth

One last finishing touch for our party room was the JAWS photobooth I made out of part of a refrigerator box. I actually free handed the outline of the shark (I’m not very artistic, this is super easy) and used some grey paint (2 different shades) to paint it in. I used my cricut for the words and this cardboard cutter made cutting out the teeth super easy. Out line the mouth with red and then add two black circles for the eyes and there ya go!

How to make your own JAWS shark photo booth.
Make your own JAWS photo booth for the perfect addition to your ocean party

We got pictures of each of the kiddos back there and sent them out with their thank you cards. Don’t forget to have them wear their scuba gear for the picture!

Shark photobooth out of a cardboard box
Shark photobooth out of a cardboard box

Under the Sea Dessert Table

I guess I can’t leave you without sharing about our amazing cake! My mother in law really outdid herself with this one, it was so gorgeous. I love how she did that Ombre look with the frosting- and the inside was even more beautiful with each layer a different shade of blue. We added some leftover crushed up graham cracker to our dessert table to add that sand feel and I stinkin’ forgot to add the sea shells over there, dang it!

Ocean themed shark ombre cake.
Ocean themed shark ombre cake.

We also had a beautiful banner hanging over our dessert table, I have made a printable version of that for you in my Ocean Party Digital Party Pack that coordinates with the other printables I used for this party. You can see and read more about that over here.

Ocean Digital Party Bundle
Over 10 pages of printables for your Ocean party including: Happy Birthday banner, party favor tags, Invitation template, Under the Sea print, adopt a sea creature print, Happy Birthday print and cupcake toppers. Circles are meant to be printed on Avery 2 1/2inch stickers

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