Season 1 · Episode 16
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Secrets of the Sunken Caves
Fri, Mar 19, 1971
The strange geological phenomenon of 'blue holes' is investigated by Captain Cousteau and his team, as they discover an undersea 'cathedral' one hundred feet below the surface.
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Fri, Mar 19, 1971
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The Undersea World of Jacques Cousteau
36 episodes
Episode
S1 · E16
in The Undersea World of Jacques Cousteau
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The Unsinkable Sea Otter
S1 · E17
The Unsinkable Sea Otter
Sun, Sep 26, 1971