Actor Jim Carrey is the narrator/tourguide for a stunning journey into the world's most beautiful and remote coral reefs. With his amazing underwater Imax camera, director Howard Hall travels to Papua New Guinea, Indonesia, Australia's Great Barrier Reef, and some of the world's most isolated spots in order to bring audiences truly jaw-dropping visual experiences. Great white sharks swim right up, sting rays flap sand all over, and there's up-close and personal time with sea lions, sea turtles, clown fish, nautilus and dwarf whales, and the leafy-looking sea dragon (at such close proximity, these creatures make typical movie monsters seem pretty tame). The sealife can be hypnotic in the clear, flowing waves--as in the dance of the cuttlefish, or the fields of eels--but beware of sudden attacks from well-camouflaged predators like the spiny scorpion fish. Hall is a pro photographer of these Imax soirees, having also helmed DEEP SEA and INTO THE DEEP, and his great patience, skill, and obvious love for his subject matter pay off in fully immersive images that add urgency to the film's serious environmental concerns: acidification and global warming are endangering the reefs, and action must be taken if these creatures are to survive into the future.