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Ocean Crafts for Kids: 35+ Fun Under-the-Sea Ideas

Dive into 35+ ocean crafts for kids featuring whales, sharks, turtles, jellyfish, and more. Perfect for summer, classrooms, and rainy days!

Ocean Crafts for Kids

If your house is anything like mine, there are certain topics that never go out of style. Dinosaurs. Space. Unicorns. And of course, the ocean.

There’s just something magical about it.

Maybe it’s the colorful fish, friendly dolphins, giant whales, or mysterious creatures hiding deep beneath the waves. Whatever the reason, ocean crafts are always a hit with kids. They combine creativity, imagination, and just enough learning to keep everyone happy.

The best part? There are so many directions you can go. One day your little artists can create a paper plate whale. The next day they can build an underwater diorama, make a jellyfish mobile, or design an entire ocean scene filled with sea turtles and sharks.

These ocean crafts for kids are perfect for summer afternoons, rainy days, classroom activities, homeschool projects, and ocean-themed birthday parties.

Many are simple enough for toddlers to enjoy with a little help, while others are ideal for preschoolers, kindergarten students, and older children who love getting creative.

You’ll also find plenty of opportunities to practice important skills along the way. Cutting, gluing, painting, and assembling projects help strengthen fine motor skills while encouraging creativity and problem-solving.

If you’re planning an ocean lesson, these hands-on activities are a fun way to reinforce learning without it feeling like schoolwork.

Whether you’re crafting with toddlers at home, planning activities for preschoolers, creating an ocean unit for kindergarten, or simply looking for fun projects to keep kids busy, this collection has something for everyone.

So gather your paper plates, paint, glue, and recycled materials. It’s time to dive into some seriously fun ocean crafts!

Under the Sea Arts and Crafts

1
paper plate whale

Paper Plate Whale

These adorable whale puppets are perfect for storytelling, book-themed activities, and creative play long after crafting ends.
Get the Tutorial
2
ocean sensory bin

Ocean Sensory Bin

Ocean sensory bins offer a unique blend of sensory exploration and imaginative play! From vibrant blue rice mimicking the ocean floor to tactile sea shells and whimsical ocean animal figurines, each element invites children to dive deep into an underwater adventure filled with excitement and discovery.
Get the Tutorial
3
paper bowl sea turtles

Paper Bowl Sea Turtles

Create adorable sea turtles from paper bowls and craft supplies. This is a fun craft for summer break, and it also goes well with a classroom ocean unit.
Get the Tutorial
4
Porthole Shark Suncatcher craft
onesimpleparty.com

Shark Porthole Sun Catcher

Ever imagine swimming with the sharks (the friendly ones of course)? Create a sun catcher porthole to watch sharks through! Great idea for imaginative play.
Get the Tutorial
5
Jellyfish Salt Painting Activity For Kids
www.iheartartsncrafts.com

Jellyfish Salt Painting

Kids will love using salt, glue, and watercolors to create some colorful ocean art. They can make the shapes of any underwater creatures they like.
Get the Tutorial
6
Beach Diorama Project

Colorful Paper Beach Diorama

Design a miniature beach scene filled with bright colors, creative 3-D details, and plenty of summertime ocean vibes.
Get the Tutorial
7
how-to-make-under-the-sea-octopus-out-of-paper

Paper Roll Octopus

Transform cardboard tubes into friendly octopuses that inspire storytelling, pretend play, and ocean-themed creative adventures.
Get the Tutorial
8
watercolor-ocean-art-for-kids

Watercolor Ocean Painting

You'll enjoy adding ocean details with oil pastels to this painting, then covering it all with a beautiful blue-green watercolor wash. This project is a great one to do over several days, or turn into a mixed media project by adding collage pieces.
Get the Tutorial
9
Paper Fan Puffer Fish Craft
kidscraftroom.com

Paper Fan Puffer Fish

Kids will feel like they are under the ocean when you make and hang these puffer fish from the ceiling. Great decoration idea for a kid's party!
Get the Tutorial
10
ocean sensory bottles

Ocean Sensory Bottles

Learn how to create three versions: Ocean Waves, Mini Aquarium, and Under the Sea! Toddlers love shaking these ocean-themed sensory bottles while exploring movement, color, and underwater-inspired sensory experiences.
Get the Tutorial
11

DIY Seashell Crabs

Make a super fun crab with a seashell, googly eyes, and pipe cleaners! You can make them whatever fun colors you like. Then check out more seashell creatures.
Get the Tutorial
12
recycled shark binoculars

Recycled Shark Binoculars

Transform cardboard tubes into shark-themed binoculars perfect for pretend ocean expeditions and backyard adventures.
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13

Light Up Coral Reef

Make a tropical reef craft that lights up in the dark! This is a fun summer craft to help kids learn about and appreciate our planetโ€™s coral reefs. Visit the post to see how it glows.
Get the Tutorial
14
whale egg carton craft
iheartcraftythings.com

Egg Carton Whale

Such a delightful whale blowing out water made of pipe cleaners! This would be a fun craft any time of year.
Get the Tutorial
15
Paper-Plate-Fish-Craft-for-Kids

Colorful Paper Plate Fish

Bright colors and layered paper scales make these cheerful fish a standout addition to any ocean unit.
Get the Tutorial
16
black glue watercolor seashells

Black Glue Watercolor Seashells

The combination of black glue outlines and watercolor paint creates stunning seashell artwork with beautiful contrast.
Get the Tutorial
17

Handprint Fish & Footprint Whale

Capture little hands and feet in ocean-themed keepsakes that families will treasure long after craft day. Also check out this footprint shark family!
Get the Tutorial
18
paper plate ocean craft
funmoneymom.com

Paper Plate Ocean

Turn shells and kitchen sponges into a beautiful underwater scene! Each one will be a unique piece of art.
Get the Tutorial
19

Salt Dough Starfish

Youโ€™ve seen them in touch pools at the aquarium or maybe even in tide pools at the beach, starfish or sea stars that is! Learn about fascinating sea stars while sculpting your own durable salt dough version for display or play.
Get the Tutorial
20
Ocean-Slime-Jars

Slime Jars

Combine glitter, slime, and miniature sea creatures to create mesmerizing sensory jars kids will play with repeatedly.
Get the Tutorial
21
3D Underwater Ocean Paper Craft
littlebinsforlittlehands.com

3D Ocean Paper Craft

Find out how 3D images can be created while learning about the ocean with this fun ocean craft!
Get the Tutorial
22
paper roll seahorse

Paper Roll Seahorse

Make an adorable seahorse puppet that encourages imaginative play and keeps ocean adventures going beyond craft time.
Get the Tutorial
23
plastic bottle jellyfish mobile

Plastic Bottle Jellyfish Mobile

Give plastic bottles new life by turning them into colorful jellyfish that gently sway with every breeze.
Get the Tutorial
24
Painted Rocks Sharks
sustainmycrafthabit.com

Shark Rock Painting

Hop on the rock painting trend and have some toothy fun with these painted rocks. These shark rocks look perfect planted in the sand.
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25
Under the Sea Shape Craft
www.messylittlemonster.com

Under the Sea Shapes

Make an underwater scene using basic shapes cut out of construction paper! This is an awesome idea for younger kids.
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26
Foam Ocean Animal Pencil Toppers
homanathome.com

Ocean Animal Pencil Toppers

You'll never want to use a plain old pencil again once you've added these creatures to your writing implements!
Get the Tutorial
27
perler bead ocean animals

Perler Beads

Animal lovers, youโ€™re going to love these 60+ perler bead patterns! These animal perler beads include lots of sea dwellers.
Get the Tutorial
28
makeandtakes.com

Apple Stamped Crab

Buy an extra apple at the store to make this crab craft. You'll cut the apple to use it as a stamp!
Get the Tutorial
29
watercolor-seashell-picture-frame-craft-idea-for-kids

Watercolor Seashell Frame

Turn a simple picture frame into a colorful beach keepsake using watercolor painting techniques on shells! Glue them to the frame to make a unique project you'll want to display all year.
Get the Tutorial
30
Bubble-Wrap-Starfish-Art

Bubble Wrap Starfish Art

Use bubble wrap as a painting tool to create textured starfish art that looks surprisingly realistic.
Get the Tutorial
31
toilet tube narwhal

Toilet Paper Tube Narwhal

Turn a cardboard tube into a magical narwhal complete with its famous horn and plenty of personality.
Get the Tutorial
32
leaping dolphin shoebox craft

Leaping Dolphin Shoebox Craft

Future engineers will love building a spinning dolphin toy that combines crafting, problem-solving, and interactive play.
Get the Tutorial
33

Paper Chain Octopus

Build a giant octopus with paper chains while practicing cutting, assembly, and creative classroom display skills.
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34
cute-seahorse-craft-for-kids

Paper Plate Seahorses

Preschoolers and kindergarten students will enjoy decorating glittery seahorses that fit perfectly into summer and ocean themes.
Get the Tutorial
35
Dyeing-Sand-at-the-Beach

How to Dye Sand at the Beach

Colored sand is super simple and fun to make! The kids will think it is magic watching the sand turn a color. This is non-toxic – it is important to use a vegan food dye as to not hurt the water supply or animals.
Get the Tutorial
36
D-is-for-Dolphin-craft

D is for Dolphin

Reinforce letter recognition while learning about marine animals with this fun alphabet craft for early learners.
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37
ocean-paper-plate-wreath

Paper Plate Coastal Wreath

Create an ocean-inspired wreath featuring fish, coral, and shells while strengthening fine motor skills through crafting.
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38
racing paper cup crabs

Racing Paper Cup Crabs

These funny runaway paper cup crabs use kinetic energy to scuttle sideways, bringing a touch of hilarity to your craft projects! By attaching simple mechanisms to the bottom of decorated paper cups, you can create playful crustaceans that scoot along the ground.
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39
www.littleladoo.com

Paper Plate Walrus

With easy-to-follow instructions, a free template, and a video tutorial, you can transform ordinary paper plates into adorable walruses in no time.
Get the Tutorial
40
Whale Phone Holder Clay Craft
doodleandstitch.com

Whale Phone Holder

Make a fun whale phone holder out of air dry clay. This simple craft is great fun and you can keep it forever to prop up your phone! You could make these phone holders as DIY gifts to give to friends and loved ones.
Get the Tutorial

Which of these ocean crafts do you want to try first? Let me know in the comments below and then check out these other great craft collections with various themes and supplies:

Apples โ€ข Boredom Busters โ€ข Coffee Filters โ€ข Construction Paper โ€ข Cotton Balls โ€ข Fall โ€ข Flowers โ€ข Frog โ€ข Macaroni โ€ข Moon โ€ข Mushrooms โ€ข Nature โ€ข Paper โ€ข Paper Bag โ€ข Paper Cups โ€ข Pine Cones โ€ข Popsicle Sticks โ€ข Stars โ€ข Straws โ€ข Summer โ€ข Twigs

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