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Apyeo Lighthouse

Fl Green 5s🇰🇷Gunsan-si, KROperational

Location & Light Range

About Apyeo Lighthouse

Also known as: Apyeo (Seonyudo Northwest)

This operational lighthouse stands on a reef within a semicircular cove off Bukdo's northwestern coast. The cylindrical concrete tower, painted green, rises 13 meters high. Its light emits a single green flash every five seconds. The focal height of the light is 15 meters, providing a geographic range of 11.9 nautical miles. The site is open to visitors by boat, though the tower itself is closed to the public. The nearest port, Gunsan, is 12.4 kilometers away.

Why it matters: This lighthouse is important for vessels navigating the northwestern coast of Bukdo, marking the reef and ensuring safe passage into the semicircular cove.

Light & Optic

Characteristic Signature
Fl Green 5s
Flash Type
Flashing
Light Color
Green
Interval
5s
Raw Code
Fl G 5s
Focal Height
15m
Geographic Range
11.9NM

Location

City
Gunsan-si
Country
🇰🇷South Korea
Region
Jeonbuk State
Sea Region
a reef in a semicircular cove off the northwestern coast of Bukdo
Latitude
35.8229°
Longitude
126.4126°

References & Identifiers

Nearest Port
Gunsan(12.4 km)
Admiralty No.
M4206.335.
NGA No.
KR-3163.5

Tower & Structure

Tower Height
13m
Tower Shape
cylindrical
Tower Color
green
Material
concrete

Structure: round concrete tower painted green

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 Apyeo Lighthouse at night?+
Apyeo 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 Apyeo Lighthouse guide vessels into?+
Apyeo Lighthouse assists vessels approaching 5 nearby ports. The closest is Gunsan at 12.6 NM to the NE. Other ports served include Sangwangdeungdo (17.1 NM SW), Janghang/Seocheon-gun (17.3 NM NE), Biin (18 NM N), Daecheon (29.9 NM N). Mariners should consult the relevant chart for full approach and pilotage information.
Is Apyeo Lighthouse still active and maintained?+
Yes, Apyeo 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 Apyeo Lighthouse?+
You can track vessels near Apyeo 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.