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Sajin Hang Groin Lighthouse

Fl Green 5s🇰🇷Sokcho-si, KROperational

Location & Light Range

About Sajin Hang Groin Lighthouse

Also known as: Jangsa

A 10-meter tall, white cylindrical concrete tower is situated on the Sajin (Jangsa) Hang groin. Its light is positioned 12 meters above sea level, emitting a green flash every 5 seconds (Fl G 5s). This light provides visibility for 11 nautical miles. The structure is located in Sokcho-si, Gangwon State, South Korea. While the grounds are open, the tower is not accessible to the public. Sokcho port is 1.7 kilometers distant.

Why it matters: This navigation aid marks the harbor entrance for Sajin (Jangsa) Hang, assisting vessels approaching the Sokcho area.

Light & Optic

Characteristic Signature
Fl Green 5s
Flash Type
Flashing
Light Color
Green
Interval
5s
Raw Code
Fl G 5s
Focal Height
12m
Geographic Range
11NM

Location

City
Sokcho-si
Country
🇰🇷South Korea
Region
Gangwon State
Latitude
38.2229°
Longitude
128.5897°

References & Identifiers

Nearest Port
Sokcho(1.7 km)
Admiralty No.
M4458.64
NGA No.
16397

Tower & Structure

Tower Height
10m
Tower Shape
cylindrical
Tower Color
white
Material
concrete

Structure: round cylindrical concrete tower painted white

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 Sajin Hang Groin Lighthouse at night?+
Sajin Hang Groin 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 Sajin Hang Groin Lighthouse guide vessels into?+
Sajin Hang Groin Lighthouse assists vessels approaching 5 nearby ports. The closest is Sokcho at 0.9 NM to the S. Other ports served include Jumunjin (23.4 NM SSE), Okgye/Gangneung (42.3 NM SSE), Mukho/Donghae (47.6 NM SSE), Tonghae (48 NM SSE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Sajin Hang Groin Lighthouse still active and maintained?+
Yes, Sajin Hang Groin 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 Sajin Hang Groin Lighthouse?+
Sajin Hang Groin 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 Sajin Hang Groin Lighthouse?+
You can track vessels near Sajin Hang Groin 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.