كهف كروبيرا History of exploration
August–September: the Ukr.S.A. expedition led by Yury Kasjan. In the Main Branch, Gennadiy Samokhin dived the terminal "Dva Kapitana" Sump for a length of 140 m and depth of −46 m, which set the new depth for Krubera Cave at 2,191 م (7,188 قدم). After an elbow at -35 m the underwater passage continues to depth under steep angle. Also in the deep parts of the Main Branch, several side passages and sumps at various depths were explored. In a side branch which previously ended at −1,775 m by the "Blue Lake" sump, a series of air-filled passages was explored behind the 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 Nekujbyshevskaya Branch, a group led by Kyryl Markovskoy continued exploring new leads and extended the depth of this branch to −1,293 m.
September: the Ukr.S.A. expedition led by Yury Kasjan. Explored the Nekujbyshevskaya Branch to depth of 1,390 م (4,560 قدم). An international scientific expedition "Towards the Centre of the Earth", led by ليتوانيون Aidas Gudaitis (Aenigma), descended the main branch as far as −1,800 م (−5,906 قدم), placing water level loggers at siphons here and in the "Chamber of Soviet Speleologists" at −1,710 م (−5,610 قدم).
August–September: the Ukr.S.A. expedition led by Yury Kasjan has further pushed the Nekujbushevskaya Branch to a siphon at depth of 1,557 م (5,108 قدم). 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 Kapitanas sump).
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, 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 2,140 م (7,020 قدم). Water level measurement results of 2009–2010, collected during this expedition, showed that the water level rose up to 228 م (748 قدم) 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.
August: A team of 59 spent 27 days exploring Krubera. Including members from nine different countries, the team set up a series of camps underground. Ukrainian cave diver Gennadiy Samokhin was responsible for reaching a new world depth record of −2,197 متر (−7,208 قدم).