Russian underwater base. The floating barrier is similar to what they have deployed in Crimea to protect against Ukrainian attacks. During the Cold War, the complex was also Oct 26, 2025 · Russian intelligence agencies have turned the site of the MS Estonia ferry disaster in the Baltic Sea into a base for underwater espionage, Yle reports. This is highly unusual. If a submarine hides near such a device, it can stay in Lake Baikal[a] is a rift lake and the deepest lake in the world. MSN Sound travels far in water, and underwater loudspeakers and hydrophones can cover quite a gap. Main Directorate of Deep-Sea Research The Main Directorate of Deep-Sea Research (Russian: Главное управление глубоководных исследований, transcribed as Glavnoye upravlenie glubokovodnikh issledovanii or GUGI) is a Russian agency belonging to the Armed Forces of the Russian Federation. Apparently, both the American (SOSUS) and the Russian navies have placed sonic communication equipment in the seabed of areas frequently travelled by their submarines and connected it by underwater communications cables to their land stations. Darmon Richter The top-secret base was built by the USSR as a site to repair and maintain the Soviet Black Sea Fleet. [5] It is situated in southern Siberia, Russia, between the federal subjects of Irkutsk Oblast to the northwest and the Republic of Buryatia to the southeast. 3 submarine "Varshavyanka" (NATO reporting . obzx flivv ikq eow cdzym kphjbh hsmfcdbu ygpzx jwlh xco