The largest coral reef in the world, it is home to a quarter of all ocean life.

This beautifully illustrated picture book brings to life this extraordinary underwater world for young children, exploring its dazzling coral gardens and rainbow-coloured sea creatures. Diving into this unique habitat, readers will discover fascinating marine life, how the coral reef helps our oceans and therefore why it is so important that we act to protect this special aquatic landscape from the impact of climate change.