The
Neva Bay (
Russian: Невская губа,
Nevskaya Guba), also known as the
Gulf of Kronstadt, is the easternmost part of the
Gulf of Finland between
Kotlin Island and the
Neva River estuary where
Saint Petersburg 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.