Katajanokka Airport

The Katajanokka Seaplane Harbour was rendered obsolete by the opening of the modern, land-based Helsinki-Malmi Airport (EFHF) in 1936. The aviation industry was shifting towards larger, faster, and more reliable landplanes, making seaplane operations from the city harbor impractical for scheduled international traffic.

The specified coordinates (60.164123, 24.975121) point to a public park, Katajanokanpuisto, located in the densely developed urban district of Katajanokka. The immediate area now contains the Viking Line ferry terminal, the historic Uspenski Cathedral, residential apartment blocks, and government buildings. The water area where the seaplanes once operated is now a major part of Helsinki's South Harbour (Eteläsatama), actively used by large passenger ferries to Sweden and Estonia, as well as cruise ships.

The Katajanokka Seaplane Harbour was Helsinki's first de facto international airport and a crucial hub for Finland's early civil aviation. Operating from 1924 to 1936, it was the primary base for Aero O/Y (now known as Finnair). The airline used Junkers F 13 floatplanes to connect Helsinki with destinations like Tallinn and Stockholm, landing and taking off from the water of the South Harbour. The 'airport' consisted of a simple shore-side station, a wooden pier, and a ramp to pull the aircraft from the water for maintenance. It represents the very beginning of commercial air travel in Finland.

None. Reopening is not applicable as a land-based airport never existed at this location. The site is a protected, historically significant, and densely populated urban center. There are no plans, nor is it physically possible, to establish any kind of airport or airstrip in this area.