![](https://image.tmdb.org/t/p/w185/ryybRMqAmVxdXA8zrWoFtT4k0ng.jpg)
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Explore the mysterious giant rings of the Mediterranean, buried at a depth of 120m, with the world-famous Laurent Ballesta, world-renowned diver and his team, to understand the origin of these unique and unknown formations.
Release: Jan 01, 1970
Runtime: 90 minutes
Language: English, Français, Deutsch
Country: France
Cast: Laurent Ballesta
Crew: