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Ulsan Outer Breakwater East End Lighthouse

Fl Y 4s🇰🇷Ulsan, KROperational

Location & Light Range

About Ulsan Outer Breakwater East End Lighthouse

This yellow, cylindrical concrete tower stands 33 meters tall. Its focal plane is 17 meters above the water. The lighthouse emits a single yellow flash every 4 seconds. It is situated at the eastern end of a detached outer breakwater. This structure protects the entrance to Ulsan Bay.

Light & Optic

Characteristic Signature
Fl Y 4s
Flash Type
Flashing
Light Color
Yellow
Flash Count
1 flash
Interval
4s
Raw Code
Fl.Y. period 4s
Focal Height
17m
Geographic Range
11NM

Location

City
Ulsan
Country
🇰🇷KR
Latitude
35.4687°
Longitude
129.4065°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
33m
Tower Shape
cylindrical
Tower Color
yellow
Material
concrete

Structure: Yellow round concrete tower; 33

References & Identifiers

Admiralty No.
M4381.3
NGA No.
16690
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Frequently Asked Questions

How do mariners identify Ulsan Outer Breakwater East End Lighthouse at night?+
Ulsan Outer Breakwater East End displays the characteristic Fl Y 4s — 1 yellow flash every 4 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 yellow color may indicate a specific sector or warning zone.
Which ports and harbors does Ulsan Outer Breakwater East End Lighthouse guide vessels into?+
Ulsan Outer Breakwater East End Lighthouse assists vessels approaching 5 nearby ports. The closest is Onsan/Ulsan at 2.8 NM to the SW. Other ports served include Ulsan (2.8 NM NNW), Mipo/Ulsan (3.2 NM NNE), Busanjin-Gu (25.9 NM SW), South Busan (26.3 NM SSW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Ulsan Outer Breakwater East End Lighthouse still active and maintained?+
Yes, Ulsan Outer Breakwater East End 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 Ulsan Outer Breakwater East End Lighthouse?+
Ulsan Outer Breakwater East End 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 Ulsan Outer Breakwater East End Lighthouse?+
You can track vessels near Ulsan Outer Breakwater East End 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.