When reaching the southern coast of Finland, EuroVelo 10 - Baltic Sea Cycle Route continues along the Gulf of Finland, from Turku to Tallinn, crossing a small portion of Russia on the way. Three countries in one stage! The Gulf of Finland is the easternmost arm of the Baltic Sea. It extends between Finland (to the north) and Estonia (to the south) all the way to Saint Petersburg in Russia, where the river Neva drains into it. Other major cities around the gulf include the capitals of Helsinki and Tallinn. When cycling on the northern Estonian coast, plan some time to explore the fantastic Lahemaa National Park which is well worth the visit.