SEA DESERTS. On the beach or underwater, sand is rarely considered a place teeming with life. Yet, encounters are possible, sometimes multiple, or astonishing, even moving but always instructive. However, patience is indispensable for these rendezvous. From the tiniest, barely visible one, to the biggest congregation, each encounter has its appointed time, dictated by the sun. This unsusual episode of FISH LIFE unveils the beauty of an unsuspected world filled with life and mystery.