A bright, science-minded boy goes to the beach equipped to collect and examine flotsam--anything floating that has been washed ashore. Bottles, lost toys, small objects of every description are among his usual finds. But there's no way he could have prepared for one particular discovery: a barnacle-encrusted underwater camera, with its own secrets to share . . . and to keep.
　　In each of his amazing picture books, David Wiesner has revealed the magical possibilities of some ordinary thing or happening--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 is the springboard into a wildly imaginative exploration of the mysteries of the deep, and of the qualities that enable us to witness these wonders and delight in them.

　　這是一本畫風強悍的無字書，也是大衛·威斯納標志性的經典畫作，榮獲2007年凱迪克金獎。
書中一個好奇的小男孩在海邊發現了一個被海浪沖上沙灘的照相機。照相機古老的外形引起了他的興趣。他沖洗了里面的底片，之后照片上的情景帶它開始了令人驚訝的奇思之旅！
　　這架照相機有在大海中“流浪”，它拍下了人們在沙灘玩耍的美妙瞬間，也著有趣的大怪魚巡覽海底……每一張圖都在說話……而無字的畫面更是令讀者追隨內心做出自己獨一無二的理解。
　　因為我們每個人在漸漸長大的過程中，都是因為有了一次又一次的“流浪”，才有了一層又一層的記憶……讓那些美好有趣的經歷長存在心底吧，就想照相機把它們藏在膠片里！
　　這本書在不同的年齡閱讀會有不同的收獲……每每拿出來翻閱都會有新的愉快經歷……