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Yuya Kō Agawa Breakwater Lighthouse

Fl Green 3s🇯🇵Shimonoseki, JPOperational

Location & Light Range

About Yuya Kō Agawa Breakwater Lighthouse

This white, square concrete post stands 8.5 meters tall atop a one-story concrete equipment shelter. Located on a detached breakwater in Yuya Bay, it marks the entrance to Agawa harbor, near Shimonoseki. The light emits a green flash every three seconds from a focal height of 10 meters, visible for 10.4 nautical miles. The site is open to visitors arriving by boat, though the tower itself is closed.

Why it matters: The light warns mariners of the detached breakwater, ensuring safe passage into Agawa harbor and supporting the local maritime economy.

Light & Optic

Characteristic Signature
Fl Green 3s
Flash Type
Flashing
Light Color
Green
Interval
3s
Raw Code
Fl G 3s
Focal Height
10m
Geographic Range
10.4NM

Location

City
Shimonoseki
Country
🇯🇵Japan
Region
Yamaguchi Prefecture
Sea Region
Yuya Bay, protecting Agawa harbor on a detached breakwater.
Latitude
34.3458°
Longitude
130.9282°

References & Identifiers

Nearest Port
Tsunoshima(3.6 km)
Admiralty No.
M7395.4
NGA No.
1576

Tower & Structure

Tower Height
8.5m
Tower Shape
square
Tower Color
white
Material
concrete

Structure: An 8.5m white concrete post rises from a square, one-story concrete equipment shelter.

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Yuya Kō Agawa Breakwater Lighthouse at night?+
Yuya Kō Agawa Breakwater displays the characteristic Fl Green 3s. 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 Yuya Kō Agawa Breakwater Lighthouse guide vessels into?+
Yuya Kō Agawa Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Awano at 2.2 NM to the ENE. Other ports served include Kottoi (2.4 NM SW), Tsunoshima (3.2 NM W), Kogushi, Yamaguchi (10.1 NM S), Murotsu, Yamaguchi (12.7 NM S). Mariners should consult the relevant chart for full approach and pilotage information.
Is Yuya Kō Agawa Breakwater Lighthouse still active and maintained?+
Yes, Yuya Kō Agawa 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 Yuya Kō Agawa Breakwater Lighthouse?+
Yuya Kō Agawa 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 Yuya Kō Agawa Breakwater Lighthouse?+
You can track vessels near Yuya Kō Agawa 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.