The Neva Bay (), also known as the Gulf of Kronstadt, is the easternmost part of the

Gulf of Finland The Gulf of Finland (; ; ; ) is the easternmost arm of the Baltic Sea. It extends between Finland to the north and Estonia to the south, to Saint Petersburg—the second largest city of Russia—to the east, where the river Neva drains into it. ...

between

Kotlin Island Kotlin (; ) is a Russian island, located near the head of the Gulf of Finland, west of Saint Petersburg in the Baltic Sea. Kotlin separates the Neva Bay from the rest of the gulf. The fortified city of Kronstadt is located on the island and form ...

and the Neva River estuary where

Saint Petersburg Saint Petersburg, formerly known as Petrograd and later Leningrad, is the List of cities and towns in Russia by population, second-largest city in Russia after Moscow. It is situated on the Neva, River Neva, at the head of the Gulf of Finland ...

city centre is located. It has a surface area of . The entire bay has been separated from the Gulf of Finland by the 25 km long Saint Petersburg Dam. The area of water separated by the dam is . The entire coastline is designated part of St. Petersburg rather than of

Leningrad Oblast Leningrad Oblast (, ; ; ) is a federal subjects of Russia, federal subject of Russia (an oblast). The oblast has an area of and a population of 2,000,997 (2021 Russian census, 2021 Census); up from 1,716,868 recorded in the 2010 Russian census ...

. (six parts per thousand), the gulf freezes over for three to five months in winter. It receives the Neva and Narva rivers and the Saimaa Canal. The bay is also informally known as " the Marquis' Puddle" after Jean Baptiste, marquis de Traversay, the Russian naval minister who regarded the shallow waters of the bay as an ideal place for holding naval exercises. The Saint Petersburg Dam separates the bay from the

Baltic Sea The Baltic Sea is an arm of the Atlantic Ocean that is enclosed by the countries of Denmark, Estonia, Finland, Germany, Latvia, Lithuania, Poland, Russia, Sweden, and the North European Plain, North and Central European Plain regions. It is the ...

References

Bay Bays of the Baltic Sea Bays of Russia Bodies of water of Saint Petersburg {{SaintPetersburg-geo-stub