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Sikdo South Lighthouse

Fl Green 4s🇰🇷KROperational

Location & Light Range

About Sikdo South Lighthouse

The Sikdo South lighthouse is a 18-meter tall, green cylindrical concrete tower. It stands on a reef off the south end of Sikdo island, which is located north of Wido. The lighthouse emits a single green flash every 4 seconds, visible for 11.3 nautical miles. Its focal height is 13 meters above sea level. The structure is accessible only by boat, highlighting its isolated location. The nearest port is Gunsan, located 26.3 kilometers away.

Why it matters: This lighthouse is critical for warning vessels about the reef off Sikdo's southern end, aiding the safe transit of fishing boats and other maritime traffic in the area.

Light & Optic

Characteristic Signature
Fl Green 4s
Flash Type
Flashing
Light Color
Green
Interval
4s
Raw Code
Fl G 4s
Focal Height
13m
Geographic Range
11.3NM

Location

Country
🇰🇷South Korea
Region
Jeonbuk State
Sea Region
a reef off the south end of Sikdo, a smaller island north of Wido, South Korea
Latitude
35.6078°
Longitude
126.3010°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
18m
Tower Shape
cylindrical
Tower Color
green
Material
concrete

Structure: round cylindrical concrete tower painted green

References & Identifiers

Nearest Port
Gunsan(26.3 km)
Admiralty No.
M4206.75.
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Frequently Asked Questions

How do mariners identify Sikdo South Lighthouse at night?+
Sikdo South displays the characteristic Fl Green 4s. 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 Sikdo South Lighthouse guide vessels into?+
Sikdo South Lighthouse assists vessels approaching 5 nearby ports. The closest is Sangwangdeungdo at 8.6 NM to the WNW. Other ports served include Gunsan (26.2 NM NNE), Janghang/Seocheon-gun (30.4 NM NE), Biin (31.8 NM NNE), Daecheon (43.6 NM NNE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Sikdo South Lighthouse still active and maintained?+
Yes, Sikdo South 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 Sikdo South Lighthouse?+
You can track vessels near Sikdo South 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.