Vladivostok is the largest port in the Far East of the Russian Federation. br/>； Nikolayevsk is a port city in amur river, Russian Federation (called "Heilongjiang" in China). br/>； Murmansk is the capital of Murmansk, Russian Federation, and the largest seaport city along the Arctic Ocean. br/>； St Petersburg is the second largest city in the Russian Federation, next to the capital Moscow, a city on the Baltic Sea and an important seaport in the country.