A bright, science-minded boy goes to the beach with the intention of collecting and examining flotsam—anything floating that has washed ashore. Bottles lost toys, and small objects of all kinds are among his typical finds. But nothing could have prepared him for one particular discovery: a barnacle-encrusted underwater camera, complete with its own secrets to share… and keep. David Wiesner has revealed the magical possibilities of some ordinary thing or happening in each of his amazing picture books—a frog on a lily pad, a trip to the Empire State Building, a well-known nursery tale. This time, a day at the beach serves as a springboard for a wildly imaginative exploration of the mysteries of the deep and the qualities that allow us to witness and delight in these wonders.