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Seongmundo Lighthouse

Fl W 5s🇰🇷Masan and Geoje Area, KROperational

Location & Light Range

About Seongmundo Lighthouse

Seongmundo Lighthouse is a round concrete tower standing 17 meters high. It emits a single white flash, with the light positioned 16 meters above sea level. The lighthouse is situated within the Masan and Geoje area of South Korea. Its light has a geographic range of 7 nautical miles.

Light & Optic

Characteristic Signature
Fl W 5s
Flash Type
Flashing
Light Color
White
Flash Count
1 flash
Interval
5s
Raw Code
Fl
Focal Height
16m
Geographic Range
7NM

Location

City
Masan and Geoje Area
Country
🇰🇷KR
Latitude
34.6934°
Longitude
128.5989°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
17m
Tower Shape
round
Tower Color
white
Material
concrete

Structure: White round concrete tower; 26

References & Identifiers

Admiralty No.
M4331.7
NGA No.
16876
OpenStreetMap
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Frequently Asked Questions

How do mariners identify Seongmundo Lighthouse at night?+
Seongmundo displays the characteristic Fl W 5s — 1 white flash every 5 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.
Which ports and harbors does Seongmundo Lighthouse guide vessels into?+
Seongmundo Lighthouse assists vessels approaching 5 nearby ports. The closest is Geoje at 9.4 NM to the N. Other ports served include Tongyeong (12.4 NM NW), Kukdo (12.6 NM SW), Junghwa (12.7 NM WNW), Okpo/Geoje (13.1 NM NNE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Seongmundo Lighthouse still active and maintained?+
Yes, Seongmundo 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.
What shipping routes pass near Seongmundo Lighthouse?+
Seongmundo Lighthouse is located within the Japan / Korea shipping lane — a busy shipping corridor linking the major ports of Japan and South Korea. This makes it an important navigation reference for commercial shipping traffic in the region.
How can I track vessels near Seongmundo Lighthouse?+
You can track vessels near Seongmundo 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.