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Yongdang Sanggot Lighthouse

Fl (9) White 15s🇰🇷Jeju, KROperational

Location & Light Range

About Yongdang Sanggot Lighthouse

This cylindrical concrete tower stands 14 meters tall and is painted yellow with a black horizontal band. It is situated on a reef approximately 2.5 km north of the West End light, off the western tip of Jeju Island. Its focal height is 15 meters, and it emits a white flash every 15 seconds, visible for 11.9 nautical miles. The site is open to visitors, though the tower itself is closed to the public. The nearest port, Hwasun, is 10.4 km away.

Why it matters: This lighthouse marks a reef off the western tip of Jeju, providing guidance for vessels navigating the coastal waters of this popular island.

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
15m
Geographic Range
11.9NM

Location

City
Jeju
Country
🇰🇷South Korea
Region
Jeju
Sea Region
a reef off the western tip of Jeju, about 2.5 km north of the West End light
Latitude
33.3377°
Longitude
126.1602°

References & Identifiers

Nearest Port
Hwasun(10.4 km)
Admiralty No.
M4255.5
NGA No.
17502

Tower & Structure

Tower Height
14m
Tower Shape
cylindrical
Tower Color
yellow with a black horizontal band
Material
concrete

Structure: round concrete tower, painted yellow with a 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 Yongdang Sanggot Lighthouse at night?+
Yongdang Sanggot 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 Yongdang Sanggot Lighthouse guide vessels into?+
Yongdang Sanggot Lighthouse assists vessels approaching 5 nearby ports. The closest is Hallim at 6.5 NM to the NE. Other ports served include Aewol (10.3 NM NE), HWASUN (10.5 NM SE), Hwasun (10.7 NM SE), Kwangyang (21.1 NM ENE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Yongdang Sanggot Lighthouse still active and maintained?+
Yes, Yongdang Sanggot 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 Yongdang Sanggot Lighthouse?+
You can track vessels near Yongdang Sanggot 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.