Exploring Coral Health and Plastic Pollution with Ōpōtiki Library

On August 29th, 2025, Melissa White, Director of The International SeaKeepers Society South Pacific, partnered with the Ōpōtiki District Library to deliver an engaging marine education program for 22 students from Ōpōtiki Primary School. The session introduced students to the vital role of coral reefs, explaining their importance as ecosystems that provide shelter, food, and coastal protection, while also highlighting the threats of coral bleaching and plastic pollution. Using interactive demonstrations, students were able to see first-hand how rising sea temperatures cause coral to bleach through colour-changing 3D printed coral models, which changed color when placed in warm water. They also took part in a “sink or float” activity, where different types of plastics were tested in water to reveal how they move through the ocean and impact marine life at different depths. This led to discussions about the consequences of pollution on marine species and reef health, and encouraged students to think critically about solutions. The program emphasized the importance of reducing plastic waste, recycling responsibly, and picking up litter when they see it—simple actions that contribute to healthier oceans. By blending science, hands-on learning, and local community engagement, the activity inspired the next generation of ocean stewards and gave students a deeper understanding of how their everyday choices connect to the health of global marine ecosystems.