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Sindu Hang Lighthouse

Fl Green 5s🇰🇷KROperational

Location & Light Range

About Sindu Hang Lighthouse

Also known as: Sindu Hang (Uihangri)

Sindu Hang is a cylindrical concrete lighthouse standing 16 meters tall, painted green. It is situated on a reef at the entrance to Sindu harbor in South Korea's South Chungcheong region. With a focal height of 11 meters, its light emits a single green flash every 5 seconds, visible for 10.7 nautical miles. The lighthouse was constructed from concrete and has a round tower shape. While the site is accessible by boat, the tower itself is closed to the public. The nearest port, Taean-gun, is 5 kilometers away.

Why it matters: Sindu Hang is essential for safely navigating the entrance to Sindu harbor, directly marking a reef that poses a significant hazard to shipping.

Light & Optic

Characteristic Signature
Fl Green 5s
Flash Type
Flashing
Light Color
Green
Interval
5s
Raw Code
Fl G 5s
Focal Height
11m
Geographic Range
10.7NM

Location

Country
🇰🇷South Korea
Region
South Chungcheong
Sea Region
entrance to Sindu harbor, on a reef
Latitude
36.8428°
Longitude
126.1928°

References & Identifiers

Nearest Port
Taean-gun(5.0 km)
Admiralty No.
M4156.33
NGA No.
17862

Tower & Structure

Tower Height
16m
Tower Shape
cylindrical
Tower Color
green
Material
concrete

Structure: round green concrete tower

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 Sindu Hang Lighthouse at night?+
Sindu Hang displays the characteristic Fl Green 5s. 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 Sindu Hang Lighthouse guide vessels into?+
Sindu Hang Lighthouse assists vessels approaching 5 nearby ports. The closest is Taean-gun at 5 NM to the NNE. Other ports served include Daesan/Seosan (13.8 NM NE), DANGJIN (20.1 NM NE), Dangjin (29.3 NM ENE), Boryeong (30 NM SSE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Sindu Hang Lighthouse still active and maintained?+
Yes, Sindu 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.
How can I track vessels near Sindu Hang Lighthouse?+
You can track vessels near Sindu 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.