2 Season
91 Episode
The Undersea World of Jacques Cousteau - Season 1 Episode 16 Secrets of the Sunken Caves
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.
- Year: 1997
- Country: France, United States of America
- Genre: Documentary
- Studio: Das Erste
- Keyword: marine biology, nature documentary
- Director:
- Cast: Jacques-Yves Cousteau