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Odo Hang Lighthouse

Fl (3) Red 7s🇰🇷Pohang-si, KROperational

Location & Light Range

About Odo Hang Lighthouse

Built in 2019, this octagonal concrete tower measures 9 meters in height. The structure, painted red, is situated on the breakwater of a small harbor near Pohang-si, in the North Gyeongsang region of South Korea, protected by the Odo reef. Its light produces a single red flash every 7 seconds, with a geographic range of 11.3 nautical miles. The focal plane stands at 13 meters above sea level. Public access is permitted to the site, but not to the tower.

Why it matters: This navigation aid marks the harbor entrance, assisting vessels navigating the area protected by the Odo reef.

Light & Optic

Characteristic Signature
Fl (3) Red 7s
Flash Type
Flashing
Light Color
Red
Flash Count
3 flashes
Interval
7s
Raw Code
Fl R 7s
Focal Height
13m
Geographic Range
11.3NM

Construction & History

Year Built
2019

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

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

Structure: octagonal red concrete tower

Location

City
Pohang-si
Country
🇰🇷South Korea
Region
North Gyeongsang
Sea Region
breakwater of a small harbor sheltered by the Odo reef, Korea
Latitude
36.1551°
Longitude
129.3985°

References & Identifiers

Nearest Port
Pohang(8.1 km)
Admiralty No.
M4413.56.
NGA No.
16612.5
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Frequently Asked Questions

How do mariners identify Odo Hang Lighthouse at night?+
Odo Hang displays the characteristic Fl (3) Red 7s — 3 red flashes every 7 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 Odo Hang Lighthouse guide vessels into?+
Odo Hang Lighthouse assists vessels approaching 5 nearby ports. The closest is Pohang at 8.3 NM to the S. Other ports served include Sinhang/Pohang (8.5 NM ESE), Ganggu (11.7 NM N), Guryongpo (12.7 NM SE), Hupo (30.8 NM N). Mariners should consult the relevant chart for full approach and pilotage information.
Is Odo Hang Lighthouse still active and maintained?+
Yes, Odo 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 Odo Hang Lighthouse?+
Odo 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 Odo Hang Lighthouse?+
You can track vessels near Odo 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.