land and water based maritime navigation signal light and marker guiding to safe passage through strait of trangsund to harbor of

aid aiding background baltic bay beacon buoy coast coastal colored colorful coloured colourful day district equipment finland gulf harbor harbour isthmus karelian landscape leningrad light marine maritime mark marker nature nautical navigate navigation oblast peredovik port russia sailing sea ship shipment shipping shore sky strait trangsund transportation trongzund uuras vessel vyborg vyborgsky vysotsk water