sump, separated by six intermediary sumps. The farthest sump, "Yantarny", was explored for 130 m in length and 19.5 m in depth and continues. The deepest point in this branch has been reached at −1,841 m. In the Nekuybyshevskaya Branch, a group led by Kyryl Markovskoy continued exploring new leads and extended the depth of this branch to −1,293 m. 2008 September: the Ukr.S.A. expedition led by Jurij Kasjan. Explored the Nekuybyshevskaya Branch to depth of . An international scientific expedition "Towards the Centre of the Earth", led by Lithuanian Aidas Gudaitis (Aenigma), descended the main branch as far as , placing water level loggers at siphons here and in the "Chamber of Soviet Speleologists" at . 2009 August–September: the Ukr.S.A. expedition led by Jurij Kasjan further pushed the Nekuybushevskaya Branch to a siphon at depth of . The international "Towards the Centre of the Earth" expedition led by Aidas Gudaitis returned to the main branch to collect data from water level loggers, swap their locations and push exploration in the "Spanish branch" near camp 1400. 2008–2009 data collected from 1,710 m and 1,800 m indicated that the sump levels rose in two distinct periods: continuously from May–July 2009 and with an isolated pulse in October 2008, both sumps reaching a maximum flood depth of 12 m. New logger locations at depths of 1,800 m, 1,980 m (Kvitochka sump) and 2,140 m (Dva Kapitana's sump). 2010 July–August: The CAVEX Team Summer expedition led by Konstantin Mujin performed the first biospeleological studies in the Krubera-Voronya cave. The biospeleological studies led by the cave biologists Ana Sofia Reboleira and Alberto Sendra, provided the deepest subterranean arthropods of the Earth. August: During "Towards the Centre of the Earth" expedition led by Aidas Gudaitis, a Lithuanian member of Aenigma caving club Saulė Pankienė became the first woman to dive Kvitochka sump at 1,980 m, and subsequently to descend to the "Two Captains" sump at a depth of . Water level measurement results of 2009–2010, collected during this expedition, showed that the water level rose up to above the sump "Two Captains" during June 2010. Data logging devices were installed by Irish members of the expedition near to the entrance of the cave, to log surface conditions and enable correlation of data between surface and underground locations. "Spanish Branch" exploration was completed and a limit was reached with 131 m total passage surveyed. 2012 August: