Where did the oceans come from? Can you take a submarine to the bottom of the sea? What exactly is a coral reef? Learn about ocean creatures big and small, and how humans explore the underwater world in this incredible illustrated book on the depths of the sea.

Join your helpful guide, Professor Astro Cat, as he takes a dive from the seashore all the way to the ocean floor. From whales to deep-sea vents, there’s so much to discover on this Deep-Sea Voyage.

All books in the Professor Astro Cat Series:

Professor Astro Cat’s Frontiers of Space

Professor Astro Cat’s Human Body Odyssey

Professor Astro Cat’s Deep-Sea Voyage

Professor Astro Cat’s Atomic Adventure

Professor Astro Cat’s Stargazing

Professor Astro Cat’s Solar System

Professor Astro Cat’s Space Rockets

Professor Astro Cat’s Intergalactic Activity Book

Astro Kittens: Cosmic Machines

Astro Kittens: Into the Unknown