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Sør-Gjæslingan Lighthouse

Oc White/Red/Green 6s🇳🇴Nærøysund, NOOperational

Location & Light Range

About Sør-Gjæslingan Lighthouse

Also known as: Sør-Gjæslingan (Sondre Skarveskjær)

This square masonry tower, standing 6 meters tall, guides mariners with a focal height of 7 meters. Its lantern room is topped by a red roof, contrasting with the white tower. The light emits an occulting white, red, or green signal with a 6-second cycle, changing color to indicate direction. Located about 4 km northwest of the main Gjæslingan lighthouse in Norway's Trøndelag region, the site is open to the public, though the tower itself remains closed. This structure, with a geographic range of 9.3 nautical miles, serves as a navigational aid in the area.

Why it matters: The light's directional occulting signal, changing between white, red, and green, is specifically designed to guide vessels around local hazards or through narrow channels within this intricate Norwegian archipelago.

Light & Optic

Characteristic Signature
Oc White/Red/Green 6s
Flash Type
Occulting
Light Color
White/Red/Green
Interval
6s
Raw Code
Oc WGR 6s
Focal Height
7m
Geographic Range
9.3NM

Location

City
Nærøysund
Country
🇳🇴Norway
Region
Trøndelag
Sea Region
Located about 4 km northwest of the Gjæslingan lighthouse.
Latitude
64.7330°
Longitude
10.7765°

References & Identifiers

Nearest Port
Rorvik(13.8 km)
Admiralty No.
L1852
NGA No.
8880

Tower & Structure

Tower Height
6m
Tower Shape
square
Tower Color
white with a red lantern roof
Material
masonry

Structure: square tower with lantern and gallery

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Sør-Gjæslingan Lighthouse at night?+
Sør-Gjæslingan displays the characteristic Oc White/Red/Green 6s. 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 white/red/green color may indicate a specific sector or warning zone.
Which ports and harbors does Sør-Gjæslingan Lighthouse guide vessels into?+
Sør-Gjæslingan Lighthouse assists vessels approaching 5 nearby ports. The closest is Utvorda at 9.1 NM to the SSE. Other ports served include Abelvær (10.3 NM E), Rørvik (14.2 NM ENE), Ottersøya (15.1 NM ENE), Ottersøy (15.2 NM ENE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Sør-Gjæslingan Lighthouse still active and maintained?+
Yes, Sør-Gjæslingan 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 Sør-Gjæslingan Lighthouse?+
Sør-Gjæslingan 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 Sør-Gjæslingan Lighthouse?+
You can track vessels near Sør-Gjæslingan 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.