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Dongsan Hang South Breakwater Lighthouse

Fl Green 4s🇰🇷Hyeonnam, KROperational

Location & Light Range

About Dongsan Hang South Breakwater Lighthouse

This concrete, cylindrical lighthouse stands 10 meters tall at the end of the south breakwater of Dongsan harbor, near Hyeonnam in South Korea's Gangwon State. Painted white, its structure reaches a focal height of 15 meters above sea level. The lighthouse emits a green light with a single flash every 4 seconds, visible for 11.9 nautical miles. While the tower is closed to visitors, the site is accessible, allowing observers to approach the structure and witness its operation. The nearest port is Sokcho, located approximately 15.1 kilometers away.

Why it matters: The lighthouse clearly delineates the south breakwater, guiding fishing boats and other vessels into Dongsan harbor and preventing groundings and collisions.

Light & Optic

Characteristic Signature
Fl Green 4s
Flash Type
Flashing
Light Color
Green
Interval
4s
Raw Code
Fl G 4s
Focal Height
15m
Geographic Range
11.9NM

Location

City
Hyeonnam
Country
🇰🇷South Korea
Region
Gangwon State
Sea Region
end of the south breakwater of Dongsan harbor
Latitude
37.9785°
Longitude
128.7626°

References & Identifiers

Nearest Port
Sokcho(15.1 km)
Admiralty No.
M4455.61.

Tower & Structure

Tower Height
10m
Tower Shape
cylindrical
Tower Color
white
Material
concrete

Structure: round cylindrical concrete tower, painted white

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 Dongsan Hang South Breakwater Lighthouse at night?+
Dongsan Hang South Breakwater displays the characteristic Fl Green 4s. 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 Dongsan Hang South Breakwater Lighthouse guide vessels into?+
Dongsan Hang South Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Jumunjin at 6.6 NM to the SSE. Other ports served include Sokcho (16 NM NNW), Okgye/Gangneung (25.5 NM SSE), Mukho/Donghae (30.8 NM SSE), Tonghae (31.2 NM SSE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Dongsan Hang South Breakwater Lighthouse still active and maintained?+
Yes, Dongsan Hang South 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 Dongsan Hang South Breakwater Lighthouse?+
Dongsan Hang South 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 Dongsan Hang South Breakwater Lighthouse?+
You can track vessels near Dongsan Hang South 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.