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Ganryeong Mal Lighthouse

Fl W 3s🇰🇷Ulleungdo and Dokdo, KROperational

Location & Light Range

About Ganryeong Mal Lighthouse

The Ganryeong Mal lighthouse is an operational aid to navigation. Its focal height reaches 21 meters above sea level. This lighthouse emits a single white flash every 5 seconds. The light has a geographic range of 20 nautical miles. It is situated within the Ulleungdo and Dokdo region.

Light & Optic

Characteristic Signature
Fl W 3s
Flash Type
Flashing
Light Color
White
Flash Count
1 flash
Interval
3s
Raw Code
Fl.W. period 5s
Focal Height
21m
Geographic Range
20NM

References & Identifiers

Admiralty No.
M4445
NGA No.
16544

Location

City
Ulleungdo and Dokdo
Country
🇰🇷KR
Latitude
37.4543°
Longitude
130.8747°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Ganryeong Mal Lighthouse at night?+
Ganryeong Mal displays the characteristic Fl W 3s — 1 white flash every 3 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 Ganryeong Mal Lighthouse guide vessels into?+
Ganryeong Mal Lighthouse assists vessels approaching 2 nearby ports. The closest is Ulleung at 1.4 NM to the ENE. Other ports served include Dokdo (48.4 NM ESE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Ganryeong Mal Lighthouse still active and maintained?+
Yes, Ganryeong Mal 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 Ganryeong Mal Lighthouse?+
Ganryeong Mal 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 Ganryeong Mal Lighthouse?+
You can track vessels near Ganryeong Mal 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.