Harmaja Lighthouse, Navigation lighthouse in Gulf of Finland, Finland
The Harmaja Lighthouse rises 15 meters above sea level, featuring a cylindrical tower with red and white horizontal stripes on a square granite foundation.
Built in 1883 with an initial height of 7.3 meters, the lighthouse structure was extended to 15 meters in 1900 to enhance maritime navigation capabilities.
The lighthouse carries different names across languages, known as Harmajan majakka in Finnish and Gråhara fyr in Swedish, reflecting the bilingual nature of Finland.
The lighthouse operates with a rotating light pattern that alternates between white, red, and green signals every six seconds, covering a range of 14.9 nautical miles.
In 1936, Harmaja Lighthouse became the first installation worldwide to receive both directed and undirected radio beacon systems for maritime navigation.
Location: Helsinki
Inception: 1883
Height: 15 m
Part of: World War I fortifications in the Helsinki area
GPS coordinates: 60.10500,24.97550
Latest update: March 3, 2025 03:14
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