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Daesong Hang Lighthouse

Fl (2) Red 6s🇰🇷Ulsan, KROperational

Location & Light Range

About Daesong Hang Lighthouse

Daesong Hang lighthouse stands as a cylindrical concrete tower, built in 2010, at the end of the Daesong breakwater. It is located on the north side of the Ganjeolot peninsula, near Ulsan. The tower, painted red, measures 9 meters in height with a focal plane of 12 meters. Its base is expanded, a characteristic of its design. The light emits a single red flash every 6 seconds, visible for 11 nautical miles. While the site is open to visitors, the tower itself is closed to the public. This structure is 8.2 kilometers from the nearest port.

Why it matters: This lighthouse guides vessels approaching the Daesong breakwater, a critical point for the harbor entrance. Its light aids local fishing boats and commercial traffic in safely navigating the waters of the Ganjeolot peninsula.

Light & Optic

Characteristic Signature
Fl (2) Red 6s
Flash Type
Flashing
Light Color
Red
Flash Count
2 flashes
Interval
6s
Raw Code
Fl R 6s
Focal Height
12m
Geographic Range
11NM

Construction & History

Year Built
2010

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
9m
Tower Shape
cylindrical
Tower Color
red
Material
concrete

Structure: round cylindrical concrete tower with an expanded base

Location

City
Ulsan
Country
🇰🇷South Korea
Region
Ulju-gun
Sea Region
end of the Daesong breakwater, on the north side of the Ganjeolot peninsula
Latitude
35.3628°
Longitude
129.3614°

References & Identifiers

Nearest Port
Ulsan(8.2 km)
Admiralty No.
M4378.03
NGA No.
16711.95
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Frequently Asked Questions

How do mariners identify Daesong Hang Lighthouse at night?+
Daesong Hang displays the characteristic Fl (2) Red 6s — 2 red flashes every 6 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 red color may indicate a specific sector or warning zone.
Which ports and harbors does Daesong Hang Lighthouse guide vessels into?+
Daesong Hang Lighthouse assists vessels approaching 5 nearby ports. The closest is Onsan/Ulsan at 4.5 NM to the N. Other ports served include Ulsan (9 NM N), Mipo/Ulsan (9.9 NM NNE), South Busan (19.7 NM SSW), Busanjin-Gu (19.9 NM SW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Daesong Hang Lighthouse still active and maintained?+
Yes, Daesong Hang 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 Daesong Hang Lighthouse?+
Daesong Hang 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 Daesong Hang Lighthouse?+
You can track vessels near Daesong Hang 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.