Here you can read about the 22 th expedition from Irkutsk “ Arabica” club cavers in the cave Botovskaya, which can be found in East Siberia, close to the Lake Baikal. The expedition was organized with the support of the East Siberian Branch of Russian Geographical Society and the administration Zhigalovskii area. Five days spent working by groups in the camps underground, and the cave was surveyed further in 2332m length . And at this point the length of the cave Botovskaya reached 64 435m. The new area is with numerous lakes. At the same time there were three self-contained underground camp. Communication between them was carried out by telephone.