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Hongdo Lighthouse

Fl (3) White 20s🇰🇷Heuksan, KROperational

Location & Light Range

About Hongdo Lighthouse

Hongdo Lighthouse, a two-stage square concrete tower, was built in 1931. Standing 14 meters tall with a focal height of 89 meters, it emits a white flash every 20 seconds. The structure is painted white with a narrow green horizontal band. Located at the northern tip of Hongdo island, approximately 115 km west of Mokpo, it is part of the Dadohaehaesang National Park. The station includes a keeper's house and other buildings. The site is accessible to visitors, but the tower itself remains closed.

Why it matters: This lighthouse guides vessels navigating the waters west of Mokpo, marking the northern tip of Hongdo island, a key point for coastal traffic.

Light & Optic

Characteristic Signature
Fl (3) White 20s
Flash Type
Flashing
Light Color
White
Flash Count
3 flashes
Interval
20s
Raw Code
Fl W 20s
Focal Height
89m
Geographic Range
23.7NM

Construction & History

Year Built
1931

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
14m
Tower Shape
square
Tower Color
white with a narrow green horizontal band
Material
concrete

Structure: two-stage square concrete tower with lantern and gallery

Location

City
Heuksan
Country
🇰🇷South Korea
Region
South Jeolla
Sea Region
a small island about 115 km (72 mi) west of Mokpo, located at the northern tip of the island
Latitude
34.7113°
Longitude
125.2040°

References & Identifiers

Nearest Port
Mokpo(57.9 km)
Admiralty No.
M4222
NGA No.
17696
ARLHS No.
SKR-041
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Frequently Asked Questions

How do mariners identify Hongdo Lighthouse at night?+
Hongdo displays the characteristic Fl (3) White 20s — 3 white flashes every 20 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 white color may indicate a specific sector or warning zone.
Which ports and harbors does Hongdo Lighthouse guide vessels into?+
Hongdo Lighthouse assists vessels approaching 3 nearby ports. The closest is Hongdo at 3.8 NM to the SSW. Other ports served include Daeheuksando (11.4 NM E), Gageohyangri (39.2 NM S). Mariners should consult the relevant chart for full approach and pilotage information.
Is Hongdo Lighthouse still active and maintained?+
Yes, Hongdo 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.
How can I track vessels near Hongdo Lighthouse?+
You can track vessels near Hongdo 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.