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Bigyeongdo Lighthouse

Fl Green 5s🇰🇷Dangjin-si, KROperational

Location & Light Range

About Bigyeongdo Lighthouse

Also known as: Bigyeongdo (Daesan Hang North Breakwater)

A tapered, octagonal concrete tower painted white stands 15 meters tall, with its lantern and gallery reaching a focal height of 26 meters. This lighthouse emits a green flash every 5 seconds, visible for 14.5 nautical miles. It is situated on a pier at the west end of Bigyeongdo, an island northwest of Daesan harbor. The structure is operational and made of concrete, with the site open to the public while the tower itself remains closed. Its nearest port is Daesan, 2.2 kilometers away.

Why it matters: This lighthouse marks the western approach to Bigyeongdo island and guides ships safely towards Daesan harbor.

Light & Optic

Characteristic Signature
Fl Green 5s
Flash Type
Flashing
Light Color
Green
Interval
5s
Raw Code
Fl G 5s
Focal Height
26m
Geographic Range
14.5NM

Location

City
Dangjin-si
Country
🇰🇷South Korea
Region
South Chungcheong
Sea Region
an island northwest of Daesan harbor, on a pier at the west end of Bigyeongdo
Latitude
37.0231°
Longitude
126.4288°

References & Identifiers

Nearest Port
Daesan(2.2 km)
Admiralty No.
M4156.94.
NGA No.
KR-3360.2

Tower & Structure

Tower Height
15m
Tower Shape
octagonal
Tower Color
white
Material
concrete

Structure: tapered octagonal white concrete tower with lantern and gallery

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 Bigyeongdo Lighthouse at night?+
Bigyeongdo displays the characteristic Fl Green 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 green color may indicate a specific sector or warning zone.
Which ports and harbors does Bigyeongdo Lighthouse guide vessels into?+
Bigyeongdo Lighthouse assists vessels approaching 5 nearby ports. The closest is Daesan/Seosan at 2.3 NM to the WSW. Other ports served include DANGJIN (4.5 NM ENE), Taean-gun (11.1 NM SW), Dangjin (17.3 NM E), Pyeongtaek (18 NM E). Mariners should consult the relevant chart for full approach and pilotage information.
Is Bigyeongdo Lighthouse still active and maintained?+
Yes, Bigyeongdo 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 Bigyeongdo Lighthouse?+
You can track vessels near Bigyeongdo 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.