Special edition
Raymond Baxter reports from the South of France on man's exploration of the cold, dark, high pressure world under the sea; and research that could make France world leader in the international race to exploit the riches of the oceans.
Featuring: underwater telephones and homing devices; survival in the intense deep sea cold; year-round farming of sea bream-at a profit; anchoring a giant tanker at an off-shore terminal; new homes for fish-in old cars!; Cousteau's latest seabed submarine.