Flotsam (David Wiesner)

Summary: 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.  (from amazon.com)

Where can I find it?: Lower/Middle School library, Lithgow building

Tags: Cameras; Beaches; Stories without words; Caldecott medal