Object 825 GTS
Object 825 GTS
Object 825 GTS was a top secret submarine base used during the cold war.  It can be found in Balaklava, in the disputed territory of Crimea, Ukraine.
The function of this top secret site was for the USSR to service/repair submarines, as well as to house submarines for retaliatory strikes against the US.
The site had heavily camouflaged entrances and housed ammunition, which at times included nuclear weapons (which were stored at a constant 15 degrees).
The site itself could house personnel in order to protect them from nuclear fallout.
The base was guarded until 1993, and was handed over to the armed forces of Ukraine, who turned it into a Naval Museum Complex.
Boat tours as well as walking tours of the base are possible. Information on how to take a tour can be found at: