As a creator of pearls and with the reputation of being an aphrodisiac, the oyster is no ordinary shellfish. It is not surprising that there are widespread and intensive efforts in many parts of the world to farm oysters on a large scale. Appropriately enough, this has been most successfully and picturesquely achieved in France, particularly in the Morbihan district of Brittany.

In the warm waters of the Coral Sea, a long and bitter battle is waged -the endless struggle for survival. Sometimes it's beautiful, like the shoals of silver pilchards: sometimes pathetic, like the defenceless baby turtles.
Into this pattern of inter-dependence has come man, equipped with aqua-lung and explosive harpoon, and an endless thirst for knowledge. So he snares the poisonous sea-snake to discover the secret of its venom: dynamites the shark that could kill him.

This film is the work of the outstanding Australian underwater photographer and director, Ben Cropp: it captures beauty in the frond of coral, action in the excitement of a shark hunt: and deals with a subject of ever-increasing importance - man's place in, and destruction of his environment.