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Changhuri Lighthouse

Fl Red 6s🇰🇷Incheon, KROperational

Location & Light Range

About Changhuri Lighthouse

Also known as: Changhuri (Songmodo)

Changhuri Lighthouse is a 19-meter-high red cylindrical tower situated on a rock in the channel off the northwest side of Ganghwado, South Korea. It emits a red flash every 6 seconds from a focal height of 12 meters, providing a geographic range of 11 nautical miles. The structure, painted red, is accessible only by boat. Its operational status aids vessels navigating the waters near Incheon, 22.8 kilometers away.

Why it matters: This lighthouse is important for maritime safety in the channel off Ganghwado, warning ships about local rocky hazards with its distinct red flash.

Light & Optic

Characteristic Signature
Fl Red 6s
Flash Type
Flashing
Light Color
Red
Interval
6s
Raw Code
Fl R 6s
Focal Height
12m
Geographic Range
11NM

Location

City
Incheon
Country
🇰🇷South Korea
Region
Ganghwa-gun
Sea Region
channel off the northwest side of Ganghwado, South Korea
Latitude
37.7707°
Longitude
126.3554°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
19m
Tower Shape
cylindrical
Tower Color
red

Structure: round tower, painted red

References & Identifiers

Nearest Port
Incheon(22.8 km)
Admiralty No.
M4146.6
NGA No.
18076.5
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Frequently Asked Questions

How do mariners identify Changhuri Lighthouse at night?+
Changhuri displays the characteristic Fl Red 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 red color may indicate a specific sector or warning zone.
Which ports and harbors does Changhuri Lighthouse guide vessels into?+
Changhuri Lighthouse assists vessels approaching 5 nearby ports. The closest is Gyeongin at 18.4 NM to the SE. Other ports served include Incheon (22.4 NM SSE), BUCHEON (24.8 NM SE), Seoul (31.4 NM ESE), Yeonpyeongdo (32 NM WSW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Changhuri Lighthouse still active and maintained?+
Yes, Changhuri 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 Changhuri Lighthouse?+
You can track vessels near Changhuri 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.