Fun Seashell Sensory Bin for Preschoolers & Toddlers (Great for Ocean Themes)

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Looking for a simple and fun way to keep your little ones entertained while encouraging sensory play? This easy Seashell Sensory Bin is the perfect DIY activity for toddlers and preschoolers, bringing a bit of the beach right to your backyard or playroom. Also, perfect if you are study and ocean theme!

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With just a few simple supplies and a little imagination, you can put together a fun, hands-on activity your kids will love. Whether you’re planning a beachy summer week or just need a calm, nature-inspired way to keep them busy, this sensory bin is an easy win!

Be sure to also see our Easy DIY Beach Sensory Bin for Kids!

📌What You’ll Need

Sensory bin

Kinetic sand 

Colorful seashell mix – you could also use real seashells like we did in our beach sensory bin.

Decorative paper shred – there are tons of multi colors to choose from!

Bowl – or you could go with cupcake liners.

✨How to Set Up the Seashell Sensory Bin:

Add the kinetic sand to the bin.

Place the paper shred on one side of the sensory bin to represent the ocean.

Place the shell mix into the bin. 

This is a great color match activity for kids, or a seashell/sea star matching game.

👇Ways to Play:

Seashell Treasure Hunt: Hide the colorful seashells under the sand and let kids dig through the bin to discover hidden treasures. For extra fun, turn it into a counting game – how many pink shells can they find?

Child digging through sand to find colorful seashell toys in a sensory bin.

Sorting and Categorizing: Encourage kids to sort the seashells by color, shape, or size. This simple activity boosts fine motor skills and introduces early math concepts.

Colorful plastic seashells arranged next to a sandy sensory bin for kids.

Imaginative Beach Adventures: Let their imagination run wild as they create stories about beach adventures, mermaid kingdoms, or underwater treasure hunts using the seashells.

Child exploring colorful seashell toys in a sensory bin filled with sand.

Scooping and Pouring: Provide small scoops or cups for kids to fill, pour, and transfer the shells and sand. This is great for developing hand-eye coordination and fine motor control.

Child scooping kinetic sand into a blue bowl in a seashell sensory bin.

💡Helpful Tips


  • Use contrasting paper shred colors (like blue or teal) to make the seashells pop visually and represent “ocean water.”
  • Add scoops, tongs, or a small paintbrush to encourage fine motor development and gentle shell discovery.
  • Create a scavenger hunt: Ask children to find specific colors or shapes in the bin for a guided learning experience.
  • Pair with a shell identification chart for older kids to spark curiosity about real-life sea creatures.
  • Switch it up for repeated play: Rotate in other ocean-themed items like mini sea animals or add a sprinkle of glitter sand for extra sparkle.
  • Encourage storytelling: Ask your child where the shells came from or what ocean animal might have lived in them. 

🧠Sensory Learning Benefits

Sensory Exploration: Kids will love the different textures of sand, shells, and colorful materials – a great way to engage their senses.

Fine Motor Skills: Scooping, pouring, sorting, and digging help strengthen those tiny muscles in their hands and fingers.

Language Development: As they play, kids can learn new words like “seashell,” “starfish,” and “treasure,” expanding their vocabulary.

Imaginative Play: This bin encourages storytelling, role-playing, and creative thinking.

Math Skills: Sorting, counting, and categorizing seashells introduce early math concepts in a fun, hands-on way.

Now you have an easy, beachy adventure right in your own home! Whether you’re a mom looking for a rainy-day activity or a teacher wanting to bring a bit of the seaside to the classroom, this seashell sensory bin is a surefire way to keep little hands busy and curious minds exploring.

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