Forests can be found all over the world, including underwater! Giant kelp forests grow in coastal waters where the water is very clear so sunlight can reach the sea floor. Kelp can grow up to 18 inches a day if the conditions are right, meaning kelp forests can spring up quickly! Full-color photographs and accessible language take readers under the sea to discover the kelp forests. Information about photosynthesis, habitats, and plant structures supplement what readers learn about plants in science class. Fun fact boxes give readers even more information about kelp and its role in the ocean biome.