Where do all those bubbles go? Down to the seabed floor. So what can be behind the rock? (Lift rock flap) A lobster's snapping claw! Dive down deep in the sea, into the sand, weeds, and wrecks of sunken ships. There you'll discover some of the most fascinating creatures ever, silently swimming--including grumpy-looking cod, flatfish that live in the gloom, sleeping sharks, and squishy jellyfish in the foam. Just follow the lines and lift the flaps to uncover this unique watery world.