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How to Make a Coral Reef with Clay

by Catalina Gutierrez
January 28, 2025

Catalina Gutierrez of Red Violet Studio shares how to make a coral reef with clay that even glows under a black light! A great way to learn about coral reefs.

Updated February 2025

We live in Miami, FL, the only state in the US with an extensive shallow coral reef formation near its coasts.  Basically the reefs are everywhere around us, so we see the corals and we see how bleached they are.  

In my son’s class, they started doing some research about this topic, and one day he came home to tell me everything about it.

This topic soon became a family matter! We all became engrossed in reading about corals and watching a live video stream of marine life and coral reefs.

As we continued our conversation about corals, we wanted to explore it through some form of art making, which is what we enjoy the most as a family.

clay coral reef pinterest
Photo by Catalina Gutierrez

And that’s how this fun invitation to create our own clay coral reefs started.  We love the way these beautiful clay works of art look and they are a lovely reminder of how special and fragile the coral reefs are.

How to Make a Coral Reef with Clay

This post contains affiliate links.

MATERIALS

Time needed: 1 hour

INSTRUCTIONS

  1. Get inspired!

    Start by sharing some images on coral reefs to get your imagination going. Point out the details, textures and vibrant colors.

  2. Prep the board

    Now set out the white air dry clay, tools and wooden board. Begin to spread the clay with your fingers until the board is completely covered with clay.  

  3. Create a clay coral reef

    Once the board is completely covered, it’s time to start to create your own corals. Some can be long and spiky, others might be more flat or rounded.  Anything goes pretty much!

    clay coral reef

    Have fun with this part and get as creative as possible. Create as many corals as you need to make it look like a reef (there’s no limit)!

    clay coral reef close up

  4. Add texture

    Use the clay tools to give texture to the clay corals and to create patterns on them – think dots, little holes, lines, or any shape that stands out.

    Cut the wire into 1 inch pieces and squeeze them into some of the corals for extra texture.

    making clay coral reefs

  5. Let dry.

    Now let the the clay piece dry overnight.

  6. Add color!

    Paint your corals! Corals come in many colors and shades, and many even glow in the dark. If you’d like to make yours glow, paint with neon colors under a black light with other lights off.

    making clay coral reef

    It’s not necessary, but I guarantee it will be pretty amazing!

    glowing clay coral reef

This was a beautiful activity that brought some awareness on how to care for our planet and our oceans.  We learned things we can do to protect our coral reefs such as:

  • Choose sustainable seafood.
  • Conserve water.
  • Volunteer to help out clean our beaches, etc.
  • If scuba diving, do not touch the coral reef.
  • Use sunscreen lotions that are safe and use no active ingredients that may harm them.

I hope this activity brings as much joy to you as it did to us!

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