The Bay of Vyborg is a deep inlet running northeastward near the eastern end of Gulf of Finland

Gulf of Finland

The Gulf of Finland is the easternmost arm of the Baltic Sea. It extends between Finland and Estonia all the way to Saint Petersburg in Russia, where the river Neva drains into it. Other major cities around the gulf include Helsinki and Tallinn...

 in the Baltic Sea

Baltic Sea

The Baltic Sea is a brackish mediterranean sea located in Northern Europe, from 53°N to 66°N latitude and from 20°E to 26°E longitude. It is bounded by the Scandinavian Peninsula, the mainland of Europe, and the Danish islands. It drains into the Kattegat by way of the Øresund, the Great Belt and...

. The city of Vyborg

Vyborg

Vyborg is a town in Leningrad Oblast, Russia, situated on the Karelian Isthmus near the head of the Bay of Vyborg, to the northwest of St. Petersburg and south from Russia's border with Finland, where the Saimaa Canal enters the Gulf of Finland...

 is located near the head of the gulf.

The bay is connected by the Saimaa Canal

Saimaa Canal

The Saimaa Canal is a transportation canal that connects lake Saimaa with the Gulf of Finland near Vyborg, Russia. The canal was built from 1845 to 1856 and opened on 7 September 1856 .It was overhauled and widened in 1963–1968....

 to the lake Saimaa

Saimaa

Saimaa is a lake in southeastern Finland. At approximately , it is the largest lake in Finland, and the fourth largest in Europe. It was formed by glacial melting at the end of the Ice Age. Major towns on the lakeshore include Lappeenranta, Imatra, Savonlinna, Mikkeli, Varkaus, and Joensuu. The...

 in Finland

Finland

Finland , officially the Republic of Finland, is a Nordic country situated in the Fennoscandian region of Northern Europe. It is bordered by Sweden in the west, Norway in the north and Russia in the east, while Estonia lies to its south across the Gulf of Finland.Around 5.4 million people reside...

.

In 1790 the bay was the scene of one of largest naval battles in history

Largest naval battle in history

The title of "largest naval battle in history" is disputed between adherents of criteria which include the numbers of personnel and/or vessels involved in the battle, and the total tonnage of the vessels involved...

; the Battle of Vyborg Bay with a total of 498 Russian and Swedish ships.

The end of the bay is called Zashchitnaya Bay ' onMouseout='HidePop("17414")' href="/topics/Post-glacial_rebound">post-glacial rebound

Post-glacial rebound

Post-glacial rebound is the rise of land masses that were depressed by the huge weight of ice sheets during the last glacial period, through a process known as isostasy...

 and was left completely dry in 1857 when the Kiviniemi rapids in Losevo

Losevo, Leningrad Oblast

Losevo is a station settlement in Priozersky District, Leningrad Oblast, located at the junction of Vuoksi River and Lake Sukhodolskoye on Karelian Isthmus. It is a railway station of the Saint Petersburg–Khiytola railroad...

 , Karelian isthmus

Karelian Isthmus

The Karelian Isthmus is the approximately 45–110 km wide stretch of land, situated between the Gulf of Finland and Lake Ladoga in northwestern Russia, to the north of the River Neva . Its northwestern boundary is the relatively narrow area between the Bay of Vyborg and Lake Ladoga...

 were formed and the Burnaya River

Burnaya River

The Burnaya is a young rapid river in Priozersk District of Leningrad Oblast, Russia, on the Karelian Isthmus, which emerged in 1818. It flows from Lake Sukhodolskoye to Lake Ladoga and is a part of Vuoksi River drainage basin...

became the main outlet of Vuoksa.