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Sogodo Lighthouse

Fl (2) White 5s🇰🇷Changwon-si, KROperational

Location & Light Range

About Sogodo Lighthouse

Also known as: Sogodo (Umjido) (?)

This concrete lighthouse stands 13 meters tall on an isolated rock west of Umji Island. It features a black tower with a single red horizontal band, mounted on a round base. The light emits a white flash every 5 seconds from a focal height of 11 meters, visible for 10.7 nautical miles. The site is accessible to the public, though the tower itself is closed. Although removed from the Korean list in 2019, it continues to be charted by international maritime authorities.

Why it matters: Its continued charting by international authorities highlights its ongoing relevance for navigation in this area, particularly for passage around Umji Island.

Light & Optic

Characteristic Signature
Fl (2) White 5s
Flash Type
Flashing
Light Color
White
Flash Count
2 flashes
Interval
5s
Raw Code
Fl W 5s
Focal Height
11m
Geographic Range
10.7NM

Construction & History

Significant events: removed from Korean list in 2019

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
13m
Tower Color
black with one red horizontal band
Material
concrete

Structure: A 13m concrete post with gallery, mounted on a round concrete base and painted black with one red horizontal band.

Location

City
Changwon-si
Country
🇰🇷South Korea
Region
South Gyeongsang
Sea Region
isolated rock off the west side west of Umji island
Latitude
35.0900°
Longitude
128.7191°

References & Identifiers

Nearest Port
Jinhae(2.2 km)
Admiralty No.
M4345.3
NGA No.
16805
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Frequently Asked Questions

How do mariners identify Sogodo Lighthouse at night?+
Sogodo displays the characteristic Fl (2) White 5s — 2 white flashes every 5 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 white color may indicate a specific sector or warning zone.
Which ports and harbors does Sogodo Lighthouse guide vessels into?+
Sogodo Lighthouse assists vessels approaching 5 nearby ports. The closest is Jinhae at 2.8 NM to the NW. Other ports served include Busan New Port (4.2 NM ESE), Masan (8.3 NM NW), Okpo/Geoje (12 NM S), Gohyeon/Geoje (12.5 NM SW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Sogodo Lighthouse still active and maintained?+
Yes, Sogodo 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 Sogodo Lighthouse?+
Sogodo 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 Sogodo Lighthouse?+
You can track vessels near Sogodo 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.