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Maeam Breakwater Lighthouse

Fl G 4s🇰🇷Ulsan, KROperational

Location & Light Range

About Maeam Breakwater Lighthouse

This navigational aid is situated at Ulsan. It emits a single green flash every 6 seconds. The light has a focal height of 17 meters above sea level. Its geographic range extends to 11 nautical miles.

Light & Optic

Characteristic Signature
Fl G 4s
Flash Type
Flashing
Light Color
Green
Flash Count
1 flash
Interval
4s
Raw Code
Fl.G. period 6s
Focal Height
17m
Geographic Range
11NM

References & Identifiers

Admiralty No.
M4382
NGA No.
16700

Location

City
Ulsan
Country
🇰🇷KR
Latitude
35.5018°
Longitude
129.3893°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Maeam Breakwater Lighthouse at night?+
Maeam Breakwater displays the characteristic Fl G 4s — 1 green 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 green color may indicate a specific sector or warning zone.
Which ports and harbors does Maeam Breakwater Lighthouse guide vessels into?+
Maeam Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Ulsan at 0.6 NM to the NNW. Other ports served include Mipo/Ulsan (2.3 NM ENE), Onsan/Ulsan (4.1 NM SSW), Busanjin-Gu (26.9 NM SW), South Busan (27.7 NM SSW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Maeam Breakwater Lighthouse still active and maintained?+
Yes, Maeam Breakwater 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 Maeam Breakwater Lighthouse?+
Maeam Breakwater 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 Maeam Breakwater Lighthouse?+
You can track vessels near Maeam Breakwater 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.