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Susan Dan Lighthouse

Fl White 5s🇰🇷Sonyang, KROperational

Location & Light Range

About Susan Dan Lighthouse

The Susan Dan lighthouse stands on a concrete cylindrical tower painted white, measuring 16 meters in height. Its focal plane is 73 meters above sea level. The light emits a white flash every 5 seconds, visible for 21.8 nautical miles. It is situated on a hilltop north of Susan harbor in Gangwon State, South Korea. The tower features a gallery.

Why it matters: This light guides vessels navigating the coastal waters near the headland approaching Susan harbor.

Light & Optic

Characteristic Signature
Fl White 5s
Flash Type
Flashing
Light Color
White
Interval
5s
Raw Code
Fl W 5s
Focal Height
73m
Geographic Range
21.8NM

Location

City
Sonyang
Country
🇰🇷South Korea
Region
Gangwon State
Sea Region
hilltop north of Susan harbor, South Korea
Latitude
38.0824°
Longitude
128.6741°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

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

Structure: round cylindrical concrete tower with gallery, painted white

References & Identifiers

Nearest Port
Sokcho(7.7 km)
Admiralty No.
M4456.5
NGA No.
16424
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Frequently Asked Questions

How do mariners identify Susan Dan Lighthouse at night?+
Susan Dan displays the characteristic Fl White 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 white color may indicate a specific sector or warning zone.
Which ports and harbors does Susan Dan Lighthouse guide vessels into?+
Susan Dan Lighthouse assists vessels approaching 5 nearby ports. The closest is Sokcho at 8.5 NM to the NNW. Other ports served include Jumunjin (14.1 NM SSE), Okgye/Gangneung (33 NM SSE), Mukho/Donghae (38.4 NM SSE), Tonghae (38.7 NM SSE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Susan Dan Lighthouse still active and maintained?+
Yes, Susan Dan 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 Susan Dan Lighthouse?+
Susan Dan 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 Susan Dan Lighthouse?+
You can track vessels near Susan Dan 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.