This is one of many abandoned Russian submarines near the Arctic. When the Russians get tired of their ships they tie them up somewhere and walk away. Many, many nuclear submarines like this lie half or fully sunk at rotting docks contaminating acres around them with radiation. Very little security is provided and anyone can go aboard, although this is treacherous due to no lights and vandals and scavengers stripping them. Radioactive surplus is often found on the market in Russia.