DIY Ocean Themed Under the Sea Party Decorations

Party themes are so much fun, plus they help me focus while planning.  I’ve seen many variations of Ocean themed parties, like:

Mermaid Party

Under The Sea (or One-der the Sea for those first birthdays)

Beach or Pool Party

Sea Creature Party Decorations

These easy DIY decorations are not only inexpensive, they are fun, too!  I used these decorations in the entryway, so guests would see them as soon as you walk in and on an empty wall in the dining room.  It helped tie the theme together and use budget-friendly decorations.

You Will Need:


Construction Paper

Green Crepe Paper

I looked up some sea creatures online and did a rough sketch on construction paper.  You can always trace the outlines to make it even easier!  I did a few kinds of creatures in a couple different sizes and cut them out of construction paper in all different colors.  Once I was satisfied with the number of animals, I started taping them up to the areas I planned to decorate.

Next I ripped (you can cut if you prefer a neater look) strands of crepe paper.  I measured by eye decided approximately where I wanted the ‘seaweed’ to go.  I placed each strand by taping the bottom down near the floor board and loosely twisting.  I secure the top with another piece of tape.

Sea Party Decorations

Make sure to take a step back to admire your work.  You may want to move some creatures to get the desired look.  You may, like me, decide you want more sea creatures and add them after. Either way, it’s a nice addition to any ocean/sea themed party.  One of our little guests exclaimed “It’s like the inside of an aquarium!” when she arrived.  Precisely.



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