Gulf of Finland
Estonia's northern waters
The Gulf of Finland is an arm of the Baltic Sea extending eastward between Finland to the north and Estonia to the south, with Russia at its eastern end.
Saint Petersburg sits at its head; Helsinki and Tallinn face each other across its waters.
The gulf freezes in winter and has historically been a strategic waterway for Baltic trade and naval power.
Finland's capital city
- TallinnEstonia's main city
- Saint PetersburgMajor Russian Baltic port
- EstoniaNorthern Baltic republic
- RussiaEurasian federation, largest country
Transporting goods to destinations
- navigationDetermining position and course
- portDocking place for ships
- harborSafe anchorage for ships
- lighthouseCoastal beacon tower
vessel · ferry · icebreaker · buoy · anchorage · shipyard · fleet · cargo
Chain of scattered islands
- brackishMildly salty water
- estuaryTidal mixing zone
- inletsCoastal water passages
- islandsLand surrounded by water
shoreline · strait · seabed · salinity · depths · littoral · tributaries · tidal
Russian emperor, early 1700s
- Great Northern WarBaltic supremacy conflict, 1700s
- Treaty of NystadRusso-Swedish peace settlement, 1721
- Siege of LeningradProlonged WWII encirclement causing mass famine
- Winter War1939 Soviet-Finnish armed conflict
Soviet Union · naval battles · fortifications · blockade · Cold War · iron curtain
Trapped by frozen water
- frozenSolidified by extreme cold
- ice roadRoad on frozen water
- icebreakerTension-easing social activity
- pack iceConsolidated floating sea ice
ice fishing · freezing · drift ice · ice cover · subzero · frosty · thaw · ice floe
Pink-fleshed migratory fish
- sealsAquatic whiskered mammals
- migratory birdsSpecies traveling between seasonal habitats
- algae bloomsRapid aquatic plant overgrowth
- eutrophicationExcess nutrients depleting oxygen
pollution · conservation · water quality · biodiversity · spawning · wetlands · protected areas · marine life
Helsinki
Finland's capital city
- TallinnEstonia's main city
- Saint PetersburgMajor Russian Baltic port
- EstoniaNorthern Baltic republic
shipping
Transporting goods to destinations
- navigationDetermining position and course
- portDocking place for ships
- harborSafe anchorage for ships
lighthouse · vessel · ferry · icebreaker · buoy · anchorage · shipyard · fleet · cargo · tanker
archipelago
Chain of scattered islands
islands · shoreline · strait · seabed · salinity · depths · littoral · tributaries · tidal · undercurrents
Peter the Great
Russian emperor, early 1700s
- Great Northern WarBaltic supremacy conflict, 1700s
- Treaty of NystadRusso-Swedish peace settlement, 1721
- Siege of LeningradProlonged WWII encirclement causing mass famine
Winter War · Soviet Union · naval battles · fortifications · blockade · Cold War · iron curtain
icebound
Trapped by frozen water
- frozenSolidified by extreme cold
- ice roadRoad on frozen water
- icebreakerTension-easing social activity
pack ice · ice fishing · freezing · drift ice · ice cover · subzero · frosty · thaw · ice floe · crossing
salmon
Pink-fleshed migratory fish
- sealsAquatic whiskered mammals
- migratory birdsSpecies traveling between seasonal habitats
- algae bloomsRapid aquatic plant overgrowth
eutrophication · pollution · conservation · water quality · biodiversity · spawning · wetlands · protected areas · marine life · phytoplankton
Gulf of Finlandopen ocean
Sea far from shore
high seas · Pacific Ocean · Atlantic Ocean · mid-Atlantic · Southern Ocean