100+ Under The Sea Activities Your Kids Will Love

Do you love the ocean as much as we do? The sea offers lots of opportunities for learning for kids and adults too. This year, deep dive into a study about the sea, the animals who live under the sea, and maritime history too! An Under the Sea Theme has to be one of our all-time favorites.

Under the Sea activities are relaxing, pretty, fun, and exciting, and there is so much to learn.

Ocean Themed Activities

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Under The Sea Activities, Crafts, Snack Ideas, and Printables

We have spent years taking advantage of natural learning opportunities that are part of our daily experience living near the ocean. I’ve gathered together lots of fun activities we have done over the years and a bunch of really cute printable learning pages.

If you’re ready to start learning about life under the sea, get ready to deep dive into ocean-themed games, science activities, crafts, art projects, printables, and snack ideas. 

Books about the Ocean

Reading books together is my favorite part of homeschooling! Children learn so much from picture books and it’s an excellent way to spend quality time passing on a love of reading to your kids. You can learn a lot about the ocean from some of our favorite books. 

Explore ocean habitats with Ms. Frizzle in The Magic Schoolbus on the Ocean Floor. Discover the beauty of the reef with this artistic picture book delight: Over in the Ocean in the Coral Reef. Meet ocean animals while exploring the art of collage in Eric Carle’s Mister Seahorse

Want to check out more fun ocean books together?

Click the link below for more than 27 beautiful picture books that will take you on an under the sea adventure your kids are sure to love!

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Under the Sea Crafts

Crafting with your kids is an excellent way to reinforce under the sea lessons with kids. Crafts also provide a fun and creative way to practice motor skills for preschool learners. When kids use their fingers to manipulate materials, they build fine motor skills essential for lots of daily tasks and handwriting.

Check out these cute under the sea crafts with your kids:

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45+ Under the Sea Summer Camp Activities

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Under the Sea Art Projects

Adding an art project to your under the sea study is an excellent way to add learning and creative fun to lessons. Art helps kids practice critical thinking skills and learn about the relationship between cause and effect. It also provides opportunities to learn about patterns, an essential early math concept. 

Creating under the sea art together is a fun way to explore the ocean with your kids.

Check out all the fun ocean art projects you can do together:

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This easy fish craft is one that can be done over and over again. Not only is it great for imagination and creativity, but it’s also one of the best fish crafts for preschool aged children as well.

Under the Sea Snack Ideas

I love theming snack time for lots of reasons. Taste is tied to memory, so adding an under the sea snack to your learning adventure can be a fun way to help your kids remember the lesson as well as the fun! Plus, under the sea snacks are cute and tasty! 

Check out these deliciously easy snack ideas your kids will be excited to eat:

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Under the Sea Printables

I’ve got a variety of under the sea printable activities and resources, including ocean zone worksheets, I spy ocean animals, and sea creature mazes your kids can enjoy. 

These under the sea printables provide an easy no-prep way to add a little learning and fun to a rainy day. Printable under the sea activities can help reinforce lessons and teach children new things about the ocean. They’re also perfect for keeping kids busy on that long car ride to your beach vacation this Summer. 

Don’t miss these easy printable under the sea activities and resources:

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Ocean Life Unit Study

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Under the Sea Science Activities

Is your little one interested in marine biology? Then, you won’t want to skip these exciting undersea science experiments and learning activities. Some of our favorites include creating an ocean life experiment in a recycled jar, exploring ocean zones, and our under the sea themed science table

Science activities and experiments teach kids valuable skills like how to set goals, be resourceful, and solve problems. Plus, science activities encourage kids to be curious, ask questions, and explore the world around them.  Learn about the world under the sea with your kids through science.

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Marine Biology Ocean Unit Study with Activities

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Under the Sea Games

Do you think the fish play games under the sea? You can pretend to swim around like fish with your kids, in the pool, or even in your living room. As you swim, play a game of undersea tag. Instead of “it,” pretend to be a shark and swim around looking for fish. 

My kids love a silly game I invented one night at a hotel pool. I was too tired to want to get in the water, so I sat by the pool watching them swim. Periodically, I called out “Shark in the water!” and begin to count. My children would squeal and swim to the steps. They were safe if they made it to the steps before I made it to 10. It entertained them for half an hour and they still beg to play whenever we go swimming. 

As you can see, under the sea themed games are some of my favorites! Playing games together is a fun way to spend quality time full of learning and (at least in our house) laughter. Games teach kids important life skills too, like how to wait for their turn and be a good sport. 

We like learning games like letter matching with seashells, shark memory, and under the sea bingo. Learn how to play these games and lots of other fun ocean games with your little ones.

Beach Scavenger Hunt Free Printable

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Under The Sea Preschool Activities ~ These make the perfect unit study or just pick one or two activities for hands-on learning for your preschoolers and kindergarten.

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Under the Sea Sensory Play

Sensory play basically means any activity that stimulates the senses: touch, smell, taste, sight, and hearing. Sensory activities give kids opportunities to explore the world around them through play.

Children of all ages can enjoy and learn from sensory play. It’s the perfect way for toddlers and preschool learners to explore the magic of life under the sea. 

Check out these fun under the sea sensory play activities:

The Best Ocean Theme Recipe for Slime

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Frozen Ocean Life Sensory Play 

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Under the Sea Jello Sensory Bin

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What do you think, are you ready for an ocean adventure?  Whether it’s an under the sea sensory play, a fun ocean craft idea, or learning about nature washed up on the beach; I think you’ll find something fun to do.

Jellyfish Life Cycle and Jiggly Jellyfish Slime Recipe

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Night of the Moonjellies Sensory Bin (FIAR)

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Shark Theme Activities

Shark Activities and Games for Kids with Free Printables

10+ Under The Sea Activities Your Kids will Love, Sharks, Ocean Animals, Free Printables, Under the Sea Activities for Preschoolers, Ocean Unit Study, Shark Week and More

Shark Information for Kids (Free Shark Facts Printables)

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Shark Week for Kids

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Shark Activities, Crafts, Books, and more (Free Printables)

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Shark Books for Kids

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The Best Shark Printable Activities for Kids 

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Under the Sea Theme

The best things can come from the sea. Don’t you agree? You’ll find the best Ocean, beach, & under the sea themed activities, crafts, & snack ideas here.

You might want to pin this page to save for later.

40+ Under The Sea Activities Your Kids will Love, This page is full of under the sea activities for preschoolers, Ocean Slime, Ocean Science Experiments for kids, Ocean Animals Activities, Under the Sea Snack Ideas, Ocean themed Free Printables, Under the Sea Theme ideas, Shark Week Activities for Kids and More

I hope these activities, crafts, snacks, and printables have encouraged you to explore life under the sea with your little ones this Summer. I can’t wait to hear about your learning journey and exciting ocean experiences in the comment section. 

Click Here for 35+ More Ocean Activities for Kids

40+ Under The Sea Activities Your Kids will Love, This page is full of under the sea activities for preschoolers, Ocean Slime, Ocean Science Experiments for kids, Ocean Animals Activities, Under the Sea Snack Ideas, Ocean themed Free Printables, Under the Sea Theme ideas, Shark Week Activities for Kids and More