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Namjangja-So Lighthouse

Occ R 4s🇰🇷Incheon Area, KROperational

Location & Light Range

About Namjangja-So Lighthouse

A red, round concrete tower, 14 meters tall, stands on a platform supported by tripod piles. The light is positioned 18 meters above sea level. This structure emits a red occulting light, appearing once every 4 seconds. It is located on an isolated rock approximately 5 kilometers north of Yeongheungdo, requiring boat access. The site is open, but the tower itself is closed to the public.

Light & Optic

Characteristic Signature
Occ R 4s
Flash Type
Occ
Light Color
Red
Flash Count
1 flash
Interval
4s
Raw Code
Fl
Focal Height
18m
Geographic Range
12NM

Location

City
Incheon Area
Country
🇰🇷KR
Latitude
37.3152°
Longitude
126.4803°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
14m
Tower Shape
round
Tower Color
white
Material
concrete

Structure: Red round concrete tower; 49

References & Identifiers

Admiralty No.
M4164.5
NGA No.
17956
OpenStreetMap
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Frequently Asked Questions

How do mariners identify Namjangja-So Lighthouse at night?+
Namjangja-So displays the characteristic Occ R 4s — 1 red flash every 4 seconds. 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 Namjangja-So Lighthouse guide vessels into?+
Namjangja-So Lighthouse assists vessels approaching 5 nearby ports. The closest is Incheon at 6.4 NM to the NNE. Other ports served include Gyeongin (14.3 NM NNE), DANGJIN (15.2 NM S), BUCHEON (17 NM NE), Daesan/Seosan (18.6 NM SSW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Namjangja-So Lighthouse still active and maintained?+
Yes, Namjangja-So 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.
How can I track vessels near Namjangja-So Lighthouse?+
You can track vessels near Namjangja-So 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.