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Changdok Do Lighthouse

Fl W 5.5s🇰🇵North Korea, KPOperational

Location & Light Range

About Changdok Do Lighthouse

The Changdok Do lighthouse is a metal lattice structure topped with a white round hut. It stands 19 meters tall, with the light positioned at a focal height of 25 meters. The white light emits a single flash every 5 seconds. This lighthouse has a geographic range of 5 nautical miles.

Light & Optic

Characteristic Signature
Fl W 5.5s
Flash Type
Flashing
Light Color
White
Flash Count
1 flash
Interval
5.5s
Raw Code
Fl.W. period 5s
Focal Height
25m
Geographic Range
5NM

Location

City
North Korea
Country
🇰🇵KP
Latitude
39.1749°
Longitude
127.4417°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
19m
Tower Shape
round
Tower Color
white
Material
metal

Structure: Lattice metal structure, white round hut; 19

References & Identifiers

Admiralty No.
M4480
NGA No.
16340
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Frequently Asked Questions

How do mariners identify Changdok Do Lighthouse at night?+
Changdok Do displays the characteristic Fl W 5.5s — 1 white flash every 5.5 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 Changdok Do Lighthouse guide vessels into?+
Changdok Do Lighthouse assists vessels approaching 2 nearby ports. The closest is Wonsan at 0.7 NM to the SSE. Other ports served include Hungnam (39.9 NM NNE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Changdok Do Lighthouse still active and maintained?+
Yes, Changdok Do 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 Changdok Do Lighthouse?+
Changdok Do 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 Changdok Do Lighthouse?+
You can track vessels near Changdok Do 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.