Discover the most outrageous aspects of the deep blue—-from record-breaking depths to towering tsunamis, underwater giants to tiny sea creatures—along with ocean conservation challenges and what you can do to help.

Dive into a world of aquatic mystery in this action-packed combination of science and adventure. Famed National Geographic Explorer Sylvia Earle leads readers on an in-depth tour of life beneath the waves. Come face-to-face with whales and sharks, learn about the newest and most hi-tech ocean gear and gadgets, experiment with hands-on activities, and join Earle as she recounts her most daring dives. Packed with fascinating tidbits, animal profiles, and up-to-date science, each chapter combines stunning photography with fun, accessible text. Perfect for curious kids, ocean lovers, young explorers, and the classroom. Extreme Ocean reveals the mystery, majesty, danger, and—above all—the importance of our ocean.