Did you know that a blue whale weighs about the same as 33 elephants? Get ready to find out even more fascinating facts about the ocean, its wildlife and the history of sea exploration.
This visually stunning science guide takes you on an underwater voyage past coral reefs, submarine volcanoes and deep-sea fish. Learn about how tides and currents work, why the ocean is so salty, how humans have dived to the depths in submersible craft and much more!
