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Nakkholmsteinen Lighthouse

Iso Green 2s🇳🇴Oslo, NOOperational

Also known as: #Nakkholmsteinen

Nakkholmsteinen light is situated about 400 meters west of Nakkholmen island, marking a submerged shoal. The initial construction date of the first structure is unknown. Originally, a 6-meter lantern sat atop a stone pier. This original structure has since been replaced, and the light now operates from a mast. The light is green with an isophase cycle every 2 seconds. It is approximately 14 meters above sea level and has a geographic range of 11.6 nautical miles. The light's location on the shoal means it is only accessible by boat.

Why it matters: This light is essential for navigating the waters west of Nakkholmen island, warning mariners of the underlying shoal and helping to prevent groundings.

Characteristic Signature
Iso Green 2s
Flash Type
Isophase
Light Color
Green
Interval
2s
Raw Code
Iso G 2s
Focal Height
14m
Geographic Range
11.6NM

Significant events: Replaced

Open to public
Site open, tower closed
Flag
Type
Name
Dist.

Structure: Nakkholmsteinen light guides mariners navigating the waters west of Nakkholmen island, marking a submerged shoal that poses a hazard to vessels. Its exact origins are lost to time, with the initial structure's construction date remaining unknown. Originally, a modest 6-meter lantern was mounted atop a sturdy round stone pier, serving as a vital aid to navigation. Over the years, this original structure was replaced, and today, the light emanates from a mast, continuing its essential role in maritime safety. Situated approximately 400 meters west of Nakkholmen, the light's location on the shoal means it is only reachable by boat, offering a sense of remoteness. While the site itself is open for those who make the journey, the current light structure, being a mast, does not offer public access. It remains an active and functional navigational aid, quietly performing its duty in the local seascape.

City
Oslo
Country
🇳🇴Norway
Sea Region
A shoal about 400 m west of the island of Nakkholmen.
Latitude
59.8894°
Longitude
10.6847°
Nearest Port
Oslo(1.0 km)
Admiralty No.
B2416.5
NGA No.
0475.1
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How do mariners identify Nakkholmsteinen Lighthouse at night?+
Nakkholmsteinen displays the characteristic Iso Green 2s. Each lighthouse has a unique flash pattern published in the List of Lights, allowing mariners to positively identify it and distinguish it from other navigation aids in the area. The green color may indicate a specific sector or warning zone.
Which ports and harbors does Nakkholmsteinen Lighthouse guide vessels into?+
Nakkholmsteinen Lighthouse assists vessels approaching 5 nearby ports. The closest is Oslo at 1.3 NM to the ENE. Other ports served include Lysaker (1.8 NM NW), Snarøya (2.1 NM W), Sjursøja/Oslo (2.5 NM E), Steilene (4.9 NM SSW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Nakkholmsteinen Lighthouse still active and maintained?+
Yes, Nakkholmsteinen Lighthouse is currently operational. It is actively maintained and continues to emit its characteristic light signal for marine navigation. Most modern lighthouses are automated and monitored remotely by the national maritime authority.
What shipping routes pass near Nakkholmsteinen Lighthouse?+
Nakkholmsteinen Lighthouse is located within the Baltic Sea trade route — a vital shipping corridor for trade between Scandinavian, German, Polish, and Baltic state ports. This makes it an important navigation reference for commercial shipping traffic in the region.
How can I track vessels near Nakkholmsteinen Lighthouse?+
You can track vessels near Nakkholmsteinen Lighthouse in real time using MarineRadar. The platform shows live AIS positions of ships in the area, including vessel name, type, flag, speed, and course. Use the "Track Vessels Nearby" button on this page to open the live map centered on this lighthouse.