Seven years in the making, 26 submarine expeditions to the world's oceans, for a total of 1500 hours of underwater filming with the latest technologies. We follow Jean-Jacques Mantello down into the ocean's depths to discover a largely unexplored area that covers over 70% of the earth's surface and offers natural wonders such as the algae forests off the coast of California, Australia's Great Barrier Reef, and Mexico's Roca Partida Island. Marion Cotillard narrated the original; the Italian voice narration is by Aldo, Giovanni and Giacomo.<%YOUTUBE=iyAYtqHLIsA%>
