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Sinsido South Lighthouse

Fl (3) Green 7s🇰🇷Gunsan-si, KROperational

Location & Light Range

About Sinsido South Lighthouse

The Sinsido South Lighthouse is a 17-meter-high, cylindrical concrete tower. Painted green, it is located on a reef at the southwestern edge of Sinsido, South Korea. The light is positioned 10 meters above sea level and displays a green flash every 7 seconds (Fl G 7s). This lighthouse has a known range of 10.4 nautical miles. The site is open, but the tower is not accessible to the public. It is 12.5 kilometers from the port of Gunsan.

Why it matters: This structure serves as a navigation aid, marking a reef near the southwestern part of Sinsido. It assists ships operating in the coastal waters and warns them of the shallow area.

Light & Optic

Characteristic Signature
Fl (3) Green 7s
Flash Type
Flashing
Light Color
Green
Flash Count
3 flashes
Interval
7s
Raw Code
Fl G 7s
Focal Height
10m
Geographic Range
10.4NM

Location

City
Gunsan-si
Country
🇰🇷South Korea
Region
Jeonbuk State
Sea Region
a reef off the southwestern tip of Sinsido, South Korea
Latitude
35.8072°
Longitude
126.4422°

References & Identifiers

Nearest Port
Gunsan(12.5 km)
Admiralty No.
M4206.364.

Tower & Structure

Tower Height
17m
Tower Shape
cylindrical
Tower Color
green
Material
concrete

Structure: round concrete tower painted green

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 Sinsido South Lighthouse at night?+
Sinsido South displays the characteristic Fl (3) Green 7s — 3 green 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 green color may indicate a specific sector or warning zone.
Which ports and harbors does Sinsido South Lighthouse guide vessels into?+
Sinsido South Lighthouse assists vessels approaching 5 nearby ports. The closest is Gunsan at 12.4 NM to the NE. Other ports served include Janghang/Seocheon-gun (16.9 NM NE), Sangwangdeungdo (17.8 NM WSW), Biin (18.7 NM N), Daecheon (30.7 NM N). Mariners should consult the relevant chart for full approach and pilotage information.
Is Sinsido South Lighthouse still active and maintained?+
Yes, Sinsido South 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 Sinsido South Lighthouse?+
You can track vessels near Sinsido South 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.