(snip)
Russia’s access to the world’s oceans, aside from the Arctic, is also limited. What access it does have is blocked by other countries, which can be seen through the map below.

European Russia has three potential points from which to access global maritime trade. One is through the Black Sea and the Bosporus, a narrow waterway controlled by Turkey that can easily be closed to Russia. Another is from St. Petersburg, where ships can sail through Danish waters, but this passageway can also be easily blocked. The third is the long Artic Ocean route, starting from Murmansk and then extending through the gaps between Greenland, Iceland, and the United Kingdom.
(end snip)

More at link,
http://www.mauldineconomics.com/this-week-in-geopolitics/mapping-russias-strategy