Olenya Bay

[1] During the Soviet era, the base, which is located at at 69-13N and 33-23E and is 2 nautical miles (3.7 km; 2.3 mi) northwest of the Russian Shipyard Number 10 at Polyarny, was known as the "Olenya Guba Submarine Base, Olenya Bay, USSR".

[1] The base supports GUGI (Russian: Главное управление глубоководных исследований (ГУГИ), transcribed as Glavnoye upravlenie glubokovodnikh issledovanii or GUGI) with its objective to operate submarines that are able to dive deep into the sea, in order to gather intelligence or to work with installations on the seabed, including sabotage.

[13][14][15][16] Okolnaya Bay (Russian: Бухта Окольная) is the location of undersea GUGI reactors.

[17][20][21] According to a November 2016 Izvestia article, Okolnaya supports "Harmony-S" (Russian: «Гармония-С») for the system index "Harmony-NZ" (Russian: индекс «Гармония-НЗ») which uses robotic autonomous bottom stations (ABS) that are covertly installed on the seabed by special submarines.

[22] In May 2019 satellite views of the base taken from Google maps were republished noting pens that suggested military use of cetaceans at Olenya Bay, including possibly a tame beluga whale discovered in Northern Norway what has been dubbed Hvaldimir.