Ukrainian Speleological Association expedition to the caves of the valley Orto-Balagan, Arabica, Abkhazia

Regular international expedition to the caves of the Ortobalagan Valley, Arabika massive, Western Caucasus organized by the Ukrainian Speleological Association (UkrSA) took place in July-August 2016. The permanent leader of this speleological festival was Yury Mikhailovich Kasyan (Kiev, Ukraine).

Events