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Dongdo North Breakwater Lighthouse

Fl G 5s🇰🇷Goheung Area, KROperational

Location & Light Range

About Dongdo North Breakwater Lighthouse

The Dongdo North Breakwater light exhibits an isophase green light with a 4-second cycle from a focal height of 15 meters. The breakwater's structure also carries an isophase red light, displayed from 27 meters with a 4-second cycle. These lights together define the width of the navigable channel. The geographic range for this aid to navigation is 9 nautical miles.

Light & Optic

Characteristic Signature
Fl G 5s
Flash Type
Flashing
Light Color
Green
Flash Count
1 flash
Interval
5s
Raw Code
Iso.W. period 4s
Focal Height
15m
Geographic Range
9NM

Location

City
Goheung Area
Country
🇰🇷KR
Latitude
34.0578°
Longitude
127.3031°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Structure: Iso.R. 4s 27m 9M and Iso.G. 4s 27m 9M mark width of navigable span

References & Identifiers

Admiralty No.
M4292.6
NGA No.
17247
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Frequently Asked Questions

How do mariners identify Dongdo North Breakwater Lighthouse at night?+
Dongdo North Breakwater displays the characteristic Fl G 5s — 1 green 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. The green color may indicate a specific sector or warning zone.
Which ports and harbors does Dongdo North Breakwater Lighthouse guide vessels into?+
Dongdo North Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Geomundo at 2.5 NM to the S. Other ports served include Narodo (19.7 NM N), Nokdongsin (28.8 NM NNW), Wando-gun (31.2 NM WNW), Shinma (31.8 NM NW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Dongdo North Breakwater Lighthouse still active and maintained?+
Yes, Dongdo North Breakwater 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 Dongdo North Breakwater Lighthouse?+
Dongdo North Breakwater 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 Dongdo North Breakwater Lighthouse?+
You can track vessels near Dongdo North Breakwater 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.