Introductory intertitle reads: "This most famous of coral reefs, skirts the north-eastern coast of the great island Continent for 1,000 miles. Built by tiny marine organisms, its origin remains shrouded in mystery."

Panning shot of tide moving across an Australian beach. Underwater shot of coral formations of the Barrier Reef. The American narrator describes the beautiful colours of the coral as the camera moves across scenes of coral which just pokes above the water.

Dozens of tiny crabs are seen (Soldier Crabs?) "they are always in a hurry" says the narrator, "even if they have no place to go."

Loggerhead and Green Turtles are seen making their way up the beach.

High angle shot of local Aborigine people digging in the sand for turtle's eggs. Narrator states: "The blacks hunt for these eggs, locating them by following the tracks left on the sand and sounding in likely spots with long sticks. Various shots of the local people gathering eggs. C/U of a nest - they hold on average two hundred eggs. A man takes eggs out of the nest - he piles them up in a bucket.

We see some young turtles which have hatched out - they are three days old. C/U of the baby turtles as they are encouraged out of the nest by an Aborigine.

Three Aborigine men stand together pretending to eat turtle's eggs. They stand proudly beside their piles of eggs. The narrator states that turtle's eggs must agree with the natives as the tallest of the the three is 6 foot 6 tall.