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Sangyu Lighthouse

Fl G 6s🇰🇷Masan and Geoje Area, KROperational

Location & Light Range

About Sangyu Lighthouse

This green, round concrete tower was built and first lit in 2004. It stands 14 meters tall and has a focal height of 11 meters. The light emits a green flash every 6 seconds. This structure is located just off the small harbor of Sangyu, near the northeastern corner of Geojedo.

Light & Optic

Characteristic Signature
Fl G 6s
Flash Type
Flashing
Light Color
Green
Flash Count
1 flash
Interval
6s
Focal Height
11m

Construction & History

Year Built
2004

References & Identifiers

Admiralty No.
M4350.

Tower & Structure

Tower Shape
round
Tower Color
green
Material
concrete

Location

City
Masan and Geoje Area
Country
🇰🇷KR
Latitude
35.0277°
Longitude
128.7173°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Sangyu Lighthouse at night?+
Sangyu displays the characteristic Fl G 6s — 1 green flash every 6 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 Sangyu Lighthouse guide vessels into?+
Sangyu Lighthouse assists vessels approaching 5 nearby ports. The closest is Busan New Port at 4.6 NM to the ENE. Other ports served include Jinhae (6.2 NM NNW), Okpo/Geoje (8.3 NM S), Gohyeon/Geoje (9.6 NM SW), Masan (11.1 NM NW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Sangyu Lighthouse still active and maintained?+
Yes, Sangyu 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 Sangyu Lighthouse?+
Sangyu 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 Sangyu Lighthouse?+
You can track vessels near Sangyu 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.