Okay, be honest. When you hear “World Ocean Day,” do you get a tiny pang of guilt because you forgot to prep anything for the kids? No? Just me? 🙂
It’s easy to let these “international days of…” slip by. But World Ocean Day (coming up every June 8th) is a big one in my book. I mean, our kids are going to inherit these big blue bathtubs we call oceans, so we might as well teach them how to keep them from turning into a giant litter box, right?
But don’t worry, I’m not suggesting you deliver a lecture on marine biology that would put a dolphin to sleep. I’ve rounded up 10 World Ocean Day activities for kids that are actually fun. Like, so fun they won’t even realize they’re learning. Sneaky, huh?
So, grab a reusable water bottle, put your feet up for two seconds, and let’s chat about how we can turn our little landlubbers into ocean champions.
1. The Great (Backyard) Plastic Hunt
Ever really looked at your backyard or local park? It’s basically a plastic fossil site in the making. This activity requires zero prep and is a great way to burn off that pre-dinner energy.
Here’s the deal: Arm your kids with a pair of gloves and a bag (an old tote bag, please—not a new plastic one!). Set a timer for 15 minutes and challenge them to find as many pieces of litter as they can.
- The Rule: Anything plastic counts! Bottle caps, stray toys, broken bits of who-knows-what.
- Why it works: It’s a tangible way for them to see where plastic ends up. We live miles from the coast, and I can’t tell you how many bottle caps we find. That little bugger could totally float down a storm drain and wave “bye-bye” to a sea turtle on its way to the ocean. FYI, storm drains are basically highways to the sea for trash.
2. Build a “Mini Ocean” in a Bottle
This is my go-to activity when I need 20 minutes of peace to drink my coffee while it’s still hot. It’s part craft, part science experiment, and all fun.
What you’ll need:
- A clean, empty plastic bottle (a clear one works best)
- Water
- Blue food coloring
- Baby oil or vegetable oil
- Small sea creature toys (shells, plastic fish, etc.)
- Super glue (for the parent to handle!)
The Process:
- Fill the bottle about halfway with water.
- Add a few drops of blue food coloring. Let your kid go wild with the shaking.
- Add your small toys. Shells that sink are the best!
- Fill the rest of the bottle with oil.
- Parent step: Apply a generous amount of super glue to the inside of the cap and screw it on tight. No one wants a mini ocean all over the carpet. Trust me.
Now they have a mesmerizing wave machine! They can tip it back and forth and watch the “waves” roll. It’s like a lava lamp, but educational. 🙂
3. Taste-Test the Salt
I’m all for experiential learning, and this one is the most hilarious. We talk about the ocean being salty, but do kids really get it?
Here’s the idea: Fill two small bowls with water. Add a generous amount of salt to one bowl (stir until it dissolves) and leave the other plain. Then, have your kids dip a clean finger in each and take a tiny taste.
- The Result: The faces they make are priceless. My youngest looked at me like I had just betrayed her entire existence. It’s a great jumping-off point to talk about why ocean animals are specially made to live in salt water, and why we can’t drink it (even if we’re really thirsty while building sandcastles).
4. Create Ocean Art (With a Purpose)
Get the paint and glue out! But instead of just free-styling, give the project a mission: to show what an ocean looks like when it’s healthy versus when it’s not.
Grab a big piece of paper and draw a line down the middle.
- On one side: Have them draw a vibrant, healthy ocean scene. Think happy fish, colorful coral, and maybe a mermaid waving.
- On the other side: This is the “sad” ocean. Encourage them to draw the trash, the murky water, and the not-so-happy fish.
It sounds a little heavy, but it’s a powerful visual for them. Plus, it opens up a conversation about how our actions on land (like that plastic hunt we did) can help make sure the left side is the reality, not the right side. I always bold the takeaway here: Our choices directly paint the picture of the future ocean.
5. Movie Night with a Message
This is the easiest one on the list, IMO. You get to sit on the couch and call it “education.”
Pop some popcorn and pick an ocean-themed movie. There are so many great ones!
- Finding Nemo / Finding Dory: Classics that show the vastness and beauty of the reef, and the crazy journey across the ocean.
- Octonauts – The Great Barrier Reef: For the littlest ones, this is perfect. It’s all about respecting sea creatures and helping them.
- A Plastic Ocean (for older kids): This one is a documentary and a real eye-opener. It’s more suitable for tweens and teens.
After the movie, just chat. Ask them, “What was your favorite part?” or “Why do you think Dory had such a hard time finding her parents?” It’s learning through osmosis, people.
6. Bake Some Beach-Themed Treats
If there’s one language all kids speak, it’s sugar. World Ocean Day is the perfect excuse to get messy in the kitchen.
We love making simple sugar cookies and decorating them like ocean scenes.
- Frosting: Blue (for water) and brown (for sand).
- Sprinkles: Graveyard sprinkles for “coral,” fish-shaped candies, those little sanding sugar crystals.
- The fun part: As you bake, you can talk about why a healthy ocean is important. “We’re making a pretty ocean with our cookies, but how do we help the real ocean stay this pretty?” It’s a sneaky way to keep the conversation going without it feeling like a chore.
7. DIY Upcycled Ocean Animals
Before you toss that cardboard tube from the paper towels or those egg cartons, stop! They are not trash; they are future sea creatures.
Grab your recyclables and get creative:
- Egg cartons cut into individual cups make great little turtles or crabs. Paint them green or red, add some googly eyes, and pipe cleaner legs.
- Cardboard tubes can be flattened and cut into fish shapes. Let the kids paint them and hang them from a string to make a mobile.
- Old CD’s (if you still have them lying around!) can be glued onto cardboard to make shiny, scaly fish.
This is a perfect opportunity to talk about upcycling and reducing waste. It’s one thing to say, “We should recycle,” and another to show them that the “trash” can be transformed into something awesome.
8. Visit Your Local Aquarium (Virtually or IRL)
If you’re lucky enough to live near an aquarium, World Ocean Day is the perfect day to go. Most aquariums have special events, talks, and feeding demonstrations that go beyond your typical visit. You can get up close and personal with the very creatures you’re trying to protect.
But what if you live in Kansas? No problem! So many aquariums have incredible live webcams.
- Monterey Bay Aquarium: Their live cams are legendary. You can watch the sea otters, jellyfish, and penguins in real-time. We’ve spent an embarrassing amount of time just watching the open sea cam.
- Georgia Aquarium: They have whale shark cams! Whale sharks! It’s mind-blowing.
You can project it onto your TV and feel like you’re right there. Grab some blankets, turn the lights down, and just watch the magic happen.
9. Start a “Save Our Seas” Journal
This one is a bit more introspective, which might work better for older kids or those who love to write and draw.
Get them a simple notebook and let them create their own “Save Our Seas” journal.
- On World Ocean Day, they can draw their favorite sea animal and write down one fact about it.
- Throughout the year, they can add to it. Did they see a news story about a whale? Write it down. Did they pick up trash at the beach? Draw a picture of it.
- Make a pledge page: Have them write or draw one thing they promise to do to help the ocean, like using a refillable water bottle or saying no to plastic straws.
It becomes a personal keepsake and a constant reminder that their actions matter. It’s their own little captain’s log.
10. The Chalk Message for the World
This is our absolute favorite way to wrap up World Ocean Day. It’s simple, public, and spreads the message beyond our own family.
Head out to your driveway or sidewalk with a bucket of colorful chalk. Then, let your kids go nuts creating ocean-themed masterpieces and messages for everyone who walks by.
- Draw giant fish, whales, and turtles.
- Write messages: “Save Our Seas!”, “Love Your Ocean,” “No Plastic, Please!”
- Draw a picture of the Earth with the ocean taking up most of the space (because, well, it does).
The next day, when you see the faded art on the pavement, it’s a sweet reminder of the fun you had and the promise you made to our big blue planet. And the rain? That just washes it all back to the earth. A perfect, natural end.
Go Make a Splash!
So, there you have it. Ten ridiculously fun ways to celebrate World Ocean Day with your kids. You don’t need to be a marine biologist or have a fancy budget. You just need a little bit of curiosity and a willingness to get your hands dirty (or salty).
Pick one, pick two, or do all ten! The most important thing is to have fun together and plant that little seed of appreciation in those growing minds.
Now, I want to hear from you! Which of these activities are you going to try first? Or do you have a genius ocean-themed activity that I missed? Drop a comment below and share the love! 🙂
