Subject: This film is about one of the longest caves in Russia, which is situated in the North of the Irkutsk area. The cave “Botovskaya” was founded several decades ago. This cave is frequently visited by speleologists of Irkutsk club “Arabica” in order to research it. The speleologists have already passed more than 50 km underground labyrinths. As speleologists say it is not the limit for them.

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