Great Barrier Reef (1981)

Mysterious and only superficially explored by generations of the native Aborigines Australias Great Barrier Reef is one of the worlds most extraordinary natural life systems Twelve hundred miles long and made up of coral it is the Earths largest structure built by living things in some places extending 120 miles into the sea So many varieties of life call the reef home that more than a dozen species can be found within any square meter of its surface This IMAX film brilliantly captures the visual splendor of this environment with splendid underwater photography typical of the format Sharks sea turtles anemones and the coral itself are the living subjects of the cameras probing eye Overall this documentary is a comprehensive look at this longstudied web of life that leaves a lasting impression of its depth and beauty