Over and under the coral reef

"Part of the acclaimed nature book series that includes Over and Under the Pond, Over and Under the Wetland, and Over and Under the Snow, this volume takes readers on a journey into the colorful and lively coral reef of Grand Cayman in the Caribbean. Over the reef, terns circle and frigate birds soar. Sea turtles paddle and balloonfish float through the sparkling waves. But under the reef's arms, where nurse sharks prowl the seafloor and octopuse...