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Nangdo Hang Lighthouse

Fl Red 4s🇰🇷Yeosu-si, KROperational

Location & Light Range

About Nangdo Hang Lighthouse

This octagonal concrete tower stands 13 meters tall and was constructed in 2003. Located at the southwestern corner of Nangdo island, it marks the entrance to Nangdo harbor. The lighthouse is situated at the extremity of the south breakwater, guiding vessels into the protected waters. Its focal plane is 18 meters above sea level, and it emits a red light with a single flash every 4 seconds. The geographic range of the light is 12.7 nautical miles. While visitors can access the site, the tower itself is not open to the public.

Why it matters: This lighthouse guides local fishing fleets and other small craft entering and departing Nangdo harbor, offering a distinct navigational reference at the end of the main breakwater.

Light & Optic

Characteristic Signature
Fl Red 4s
Flash Type
Flashing
Light Color
Red
Interval
4s
Raw Code
Fl R 4s
Focal Height
18m
Geographic Range
12.7NM

Construction & History

Year Built
2003

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
13m
Tower Shape
octagonal
Tower Color
red
Material
concrete

Structure: octagonal concrete tower

Location

City
Yeosu-si
Country
🇰🇷South Korea
Region
South Jeolla
Sea Region
Nangdo harbor, at the southwestern corner of Nangdo island
Latitude
34.5966°
Longitude
127.5386°

References & Identifiers

Nearest Port
Yeosu(12.8 km)
Admiralty No.
M4305.2
NGA No.
17221
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Frequently Asked Questions

How do mariners identify Nangdo Hang Lighthouse at night?+
Nangdo Hang displays the characteristic Fl Red 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 red color may indicate a specific sector or warning zone.
Which ports and harbors does Nangdo Hang Lighthouse guide vessels into?+
Nangdo Hang Lighthouse assists vessels approaching 5 nearby ports. The closest is Yeosu at 10.8 NM to the NE. Other ports served include Narodo (19.2 NM SW), Gwangyang (19.5 NM NNE), Samil (20.2 NM NE), Nokdongsin (20.6 NM WSW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Nangdo Hang Lighthouse still active and maintained?+
Yes, Nangdo 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 Nangdo Hang Lighthouse?+
Nangdo 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 Nangdo Hang Lighthouse?+
You can track vessels near Nangdo 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.