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Seokdaedo Lighthouse

Fl (9) White 15s🇰🇷Boryeong-si, KROperational

Location & Light Range

About Seokdaedo Lighthouse

This concrete lighthouse stands 20 meters tall on a reef located about 3.25 kilometers southwest of the Muchangpo harbor entrance. Its cylindrical tower is painted yellow and features a single black horizontal band. The light emits nine white flashes every 15 seconds, visible for nearly 13 nautical miles. While the grounds are accessible to visitors arriving by sea, the tower itself is not open to the public. The nearest port is Boryeong, over 10 kilometers away.

Why it matters: Seokdaedo Lighthouse is essential for guiding vessels safely into and out of Muchangpo harbor, warning them away from the nearby reef.

Light & Optic

Characteristic Signature
Fl (9) White 15s
Flash Type
Flashing
Light Color
White
Flash Count
9 flashes
Interval
15s
Raw Code
Fl W 15s
Focal Height
19m
Geographic Range
12.9NM

Location

City
Boryeong-si
Country
🇰🇷South Korea
Region
South Chungcheong
Sea Region
reef about 3.25 km southwest of the Muchangpo harbor entrance
Latitude
36.2393°
Longitude
126.5314°

References & Identifiers

Nearest Port
Boryeong(10.1 km)
Admiralty No.
M4187.45.
NGA No.
17826

Tower & Structure

Tower Height
20m
Tower Shape
cylindrical
Tower Color
yellow with one black horizontal band
Material
concrete

Structure: round cylindrical concrete tower painted yellow with one black horizontal band

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 Seokdaedo Lighthouse at night?+
Seokdaedo displays the characteristic Fl (9) White 15s — 9 white flashes every 15 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 white color may indicate a specific sector or warning zone.
Which ports and harbors does Seokdaedo Lighthouse guide vessels into?+
Seokdaedo Lighthouse assists vessels approaching 5 nearby ports. The closest is Daecheon at 4.9 NM to the NNW. Other ports served include Biin (7.7 NM SSW), Boryeong (9.9 NM NNW), Gunsan (15.8 NM S), Janghang/Seocheon-gun (15.9 NM SSE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Seokdaedo Lighthouse still active and maintained?+
Yes, Seokdaedo 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 Seokdaedo Lighthouse?+
You can track vessels near Seokdaedo 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.