However, characteristics of morphology of the underwater passage reported by the team were not confirmed by the subsequent exploration, and no safety line was found deeper than 16 m.* August–September: the Ukr.S.A.
However, characteristics of morphology of the underwater passage reported by the team were not confirmed by the subsequent exploration, and no safety line was found deeper than 16 m.* August–September: the Ukr.S.A.