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Seonso Hang Lighthouse

Fl Red 5s🇰🇷KROperational

Location & Light Range

About Seonso Hang Lighthouse

This red, cylindrical concrete tower stands 8 meters tall, with its light positioned 10 meters above sea level. Built in 2009, it features a square concrete skeletal structure adorned with a detailed red daymark. The lighthouse emits a red light with a characteristic of a single flash every 5 seconds, visible for 10.4 nautical miles. It is located at the end of a new breakwater pier in Seonso village, on the northeast coast of Namhaedo. The site is open to visitors, though the tower itself is closed.

Why it matters: This lighthouse provides a clear marker for the end of the breakwater pier, facilitating safe navigation for fishing boats and other vessels entering Seonso harbor.

Light & Optic

Characteristic Signature
Fl Red 5s
Flash Type
Flashing
Light Color
Red
Interval
5s
Raw Code
Fl R 5s
Focal Height
10m
Geographic Range
10.4NM

Construction & History

Year Built
2009

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
8m
Tower Shape
cylindrical
Tower Color
red
Material
concrete

Structure: square concrete skeletal tower surrounded by an elaborate red daymark

Location

Country
🇰🇷South Korea
Region
South Gyeongsang
Sea Region
northeast coast of Namhaedo, at the end of a new breakwater pier at the village of Seonso
Latitude
34.8478°
Longitude
127.9178°

References & Identifiers

Nearest Port
Gwangyang(5.8 km)
Admiralty No.
M4321.67.
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Frequently Asked Questions

How do mariners identify Seonso Hang Lighthouse at night?+
Seonso Hang displays the characteristic Fl Red 5s. 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 red color may indicate a specific sector or warning zone.
Which ports and harbors does Seonso Hang Lighthouse guide vessels into?+
Seonso Hang Lighthouse assists vessels approaching 5 nearby ports. The closest is Samil at 6.7 NM to the W. Other ports served include Samcheonpo/Sacheon (9.2 NM ENE), Gwangyang (10.1 NM WNW), Yeosu (13.8 NM WSW), GOSEONG (20.9 NM ENE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Seonso Hang Lighthouse still active and maintained?+
Yes, Seonso Hang 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 Seonso Hang Lighthouse?+
Seonso Hang Lighthouse is located within the Japan / Korea shipping lane — a busy shipping corridor linking the major ports of Japan and South Korea. This makes it an important navigation reference for commercial shipping traffic in the region.
How can I track vessels near Seonso Hang Lighthouse?+
You can track vessels near Seonso Hang 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.