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Coolest Finding Nemo and Under the Sea Birthday Party Ideas

You’re guaranteed a WHALE of a time with these cool Finding Nemo birthday party ideas!!

First off, there’s an overwhelming selection of Nemo party supplies and party packs. But don’t worry. You won’t need to browse around forever trying to find the best deal.

Just compare between the packs below which cover pretty much all the Nemo party items on the market:

Under the Sea / Finding Nemo Invitations

Cut a piece of blue tag board that fits exactly inside a snack-size Ziploc bag.

On the front of the tag board write something like: “Something Fishy’s Goin’ On”. Then, on the back write:

“Nemo has been found, come and see, and together we’ll celebrate turning (birthday number) with me.”

Underneath can be your kids name, Port (address), Cast-off (date), Dive time (start time), Resurface (end time), S.O.S (RSVP) with phone number and also “SEA you soon!!”.

In each bag place a small amount of sand, some sea-life confetti, small shells, etc. Seal them up and place them in envelopes (preferably blue).

If you want to take this idea to a higher level (and the invitations will be hand delivered), after writing, laminate the tag board to ensure that it’s waterproof. Then float it in a clear sandwich bag filled halfway with water and blue food coloring, some sand and small shells. You can then glue a fridge magnet onto the bags for the guests to put on their refrigerator.

Another variation is to take the invitation, roll it up, tie green seaweed around it (green raffia or ribbon) and put the message in a clear bottle. Add about 4 tablespoons of sand and small shells for more of the sea effect.

Under the Sea and Finding Nemo Decorations

This awesome water gossamer is probably the best (and most inexpensive) investment you’ll make for your party. It comes in three different watery patterns and you can use it to cover the furniture, walls, ceiling, table, etc., instantly and easily transforming them into a cool ocean.

From brown bulletin board paper (or a refrigerator box), cut out the shape of the underneath of a boat and hang it on the ceiling. Hang a poster-board anchor tied to a rope from the boat. Also, hang a fishing pole from the boat’s side with a fishing line and a plastic worm dangling from it.

You can also hang teal, royal blue, sea-green and light blue crepe paper streamers of varying lengths from the ceiling to create the effect of being under the sea (you can glue cut-out fish to the ends and middles of these strips). You can also hang fishnets and on them hang fish cutouts and various sea-life creatures. There are really lovely clear (see-through) shower curtains with lots of under the sea creatures. There are only fish shower curtains, or dolphins or sea-stars and seahorses. You can buy a few of them and put one in the door way, and the rest use as tablecloths.

Hang cardboard fish and seahorses from a clear fishing line to appear as if they’re swimming around, and sprinkle around the house various stuffed sea-life creatures. Make jellyfish from half-cut paper plates with streamers attached to resemble tentacles.

Make a giant shark mouth standee out of an empty fridge box. Gather the gang, get a few paints and brushes, enlarge this picture of a ready made shark mouth standee to help as you draw and cut. Aside from the family fun involved in making this standee, you’ll have a wonderful photo-taking opportunity, great for your thank you cards.

Get a few rolls of brown paper (the kind used in houses that are under construction) and place it on the floor to give the appearance of a sandy ocean floor. Also, place lots of blue-shaded balloons on the floor to create an ocean effect. On the tables, put a blue tablecloth with green strips across and hanging down from the edges (for seaweed). You can add fish to the end of each strip.

Seashells can be used as table confetti. You can also cover the tablecloth with fish net.A nice centerpiece is to take pails, fill them with sand, and put seashells on top, sea stars, and even a little shovel.

If you have florescent lights, take blue and green crepe paper and cover the exterior of the lights so it gives the room a watery appearance. You can also buy some blue and green light bulbs to put around the house to really give the under-the-sea kind of feeling. Another good way to achieve this effect (if you are having your Finding Nemo party during the day) is to buy blue and green cellophane paper and cover all the windows in the house and enjoy the blue-greenish light immerse the house.

Get lots of bubble bottles and bubble guns and blow bubbles across the room while you watch the kids race around trying to pop them.


Getting the kids to dress up, especially the birthday child, is always fun and adds a lot of color to the party. Here are some great homemade under the sea costume ideas and photos submitted to us by visitors.

Take a look at all the coolest homemade Finding Nemo costumes.

Under the Sea / Finding Nemo Icebreaker Activities

Fish Name Tag

Before the Finding Nemo birthday party, make a fish-shaped nametag for each guest using heavy, colorful paper and attach a paper clip to the mouth of each fish. Place all the fish in an empty kiddie pool or decorated box and as each kid arrives, hand them a fishing pole (sturdy stick with a yarn “line” and a magnet “hook”). They throw the line in the kiddie pool or box and when a fish is “caught,” write the kid’s name on it so that they can wear during the party. You can let them decorate it with markers, stickers, glitter, etc.

Ocean in a Bottle

For this Finding Nemo activity, each kid gets a baby food jar (or any other little jar or clear water bottle for that matter). They then add small sea beads, glitter, water, baby oil and blue food coloring to create their own ocean!! (Hot-glue the tops on so the ocean doesn’t spill on your floor…)

Octopus making

Let the kids draw curvy octopus legs on a large colorful poster board and cut out the design. Then cut a small slit in the center of the board and insert a blown up round balloon. Have the kids glue on jewels for octopus leg suckers and use markers to draw the eyes on the octopus’ head.

Gummy Necklace

You can have the kids make edible necklaces from gummy sharks, gummy fish, and gummy octopus by sewing through with a fishing line and blunt needle (if they’re old enough) or using gummy candy that already has holes.


Homemade Under the Sea / Finding Nemo Cakes

Take a look at all the coolest homemade Finding Nemo birthday cakes.

Under the Sea / Finding Nemo Food and Drink

Finding Nemo Birthday Party Food

Here are some ideas for your Finding Nemo birthday party cuisine. Put small signs on each just to make sure everyone understands that they are munching on real sea foods.

  • Octo-dogs (Hotdogs that look like tiny octopuses. Cut all the hotdogs in half – but not all the way – only so that they open. Then you slice halfway up four times on each half so that you have 8 dangling sections and place in boiling water. Watch them curl up like arms!!!)
  • Submarines (Subs!! you can make this a buffet-where everyone makes their own subs)
  • Fish-shaped tuna sandwiches (Use a fish cookie cutter)
  • Pasta shells
  • Seaweed pasta (Green linguine)
  • Fish sticks
  • Tuna Casserole
  • Shrimp dip
  • Under-the-sea fruit salad (Add blue food coloring to give it the under-the-sea effect)
  • Jellyfish sandwiches (Peanut Butter and jelly-fish)

Finding Nemo Birthday Party Drinks

  • Blue Punch (Put gummy fishes or gummy sharks inside. You can also freeze the gummy fish and sharks in cubes of ice)
  • Pop Rock Punch (This is another variation of the Blue Punch. After you’ve placed a filled glass in front of each guest, add some seaweed dust (a few Pop Rocks candies) to each cup. It will then crackle, pop, and split when it comes into contact with the liquid. Tip: Fill a real fish tank with ice and stick sodas in it to chill the sodas and serve from or purchase a new gold fish bowl to use as a punchbowl.

Finding Nemo Birthday Party Treats

  • Goldfish crackers
  • Fishing Poles (Long thick pretzels tied with string licorice and a gummy worm at the end)
  • Blueberry Jell-O (After making the Jell-O, refrigerate and let it partially set. Then put gummy fish and gummy sharks inside. When the Jell-O is ready, top each cup with a thin layer of ‘sea foam’ (cool whip) and some more gummy life preservers.)
  • Bowls full of gummy fish and gummy sharks
    *Dole Pineapple Fish (You can find them pre-cut in the can)
  • Shell-Shaped Chocolates

Tip: Put some of the treats in little beach pails with shovels in them.


Under the Sea and Finding Nemo Favors

For ready-made favor packs, take a look at the links above. You can create your own Finding Nemo favor packs using sand pails. Stuff them with fish squirts, a fish card game, fish magnets, little towels, beanie type sea animals, little watercolor sets, sea life bubble bottle necklaces, goggles, gummy fish, gummy sharks, etc.

A super cool idea is to hang up a blue bed sheet (it’s best if you have one that looks like it’s underwater). Before each child leaves the party, give the child a “pole” (a stick with a string and a clothes pin for a hook). Help the child throw the line over the sheet and someone on the other side clips on a prize/favor and throws the line back to the child again. This is how the kids get their party favors before they go!

Another great Finding Nemo birthday party favor idea is to give each kid one or two REAL goldfish in a plastic bag with water. You can give them some fish food as well.


Under the Sea and Nemo Games and Activities

Here’s a whole page with the coolest Nemo and Under the Sea birthday games, such as:

  • Jelly Fish Jump
  • Turtle Race, Shark Tag
  • Whale Talk
  • Deep Sea Relay
  • and many more (including visitor-submitted game ideas)…

You should also read these VERY important tips to help you survive (and enjoy) game time!


Your Under the Sea and Finding Nemo Parties and Ideas

Some of our visitors have gone the extra mile and written up their complete Under the Sea and Finding Nemo party story with photos and everything they did. We call these stories “Party Tales” and they serve as a great inspiration! Take a peek at other people’s Under the Sea and Finding Nemo theme Party Tales and you’re sure to find lots more outstanding Under the Sea and Finding Nemo party ideas:

Share your kid birthday party ideas here…

Kid Birthday Parties › Kid Birthday Party Ideas › Under the Sea Finding Nemo Birthday