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Nakira Kō Outer Breakwater Lighthouse

Oc Green 4s🇯🇵Shima, JPOperational

Location & Light Range

About Nakira Kō Outer Breakwater Lighthouse

This cylindrical concrete lighthouse, built in 1996, stands at the extremity of the main eastern breakwater of Nakira Kō. Its white tower reaches 11 meters in height, with the light positioned 17 meters above sea level. The structure includes a square, single-story concrete equipment room at its base. It emits an occulting green light, with a 4-second cycle, providing a geographic range of 12.4 nautical miles. The lighthouse is situated 4.8 kilometers from the nearest port, Matoya, and marks the protected entrance to the port of Nakira.

Why it matters: The light precisely marks the seaward end of the main breakwater, safeguarding vessels entering and exiting the busy port of Nakira.

Light & Optic

Characteristic Signature
Oc Green 4s
Flash Type
Occulting
Light Color
Green
Interval
4s
Raw Code
Oc G 4s
Focal Height
17m
Geographic Range
12.4NM

Construction & History

Year Built
1996

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
11m
Tower Shape
cylindrical
Tower Color
white
Material
concrete

Structure: round concrete tower attached to a square 1-story concrete equipment room

Location

City
Shima
Country
🇯🇵Japan
Region
Mie Prefecture
Sea Region
Located at the end of the extended east (main) breakwater at Nakira.
Latitude
34.2839°
Longitude
136.9033°

References & Identifiers

Nearest Port
Matoya(4.8 km)
Admiralty No.
M6038.2
NGA No.
6378
ARLHS No.
JPN-1839
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Frequently Asked Questions

How do mariners identify Nakira Kō Outer Breakwater Lighthouse at night?+
Nakira Kō Outer Breakwater displays the characteristic Oc Green 4s. 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 Nakira Kō Outer Breakwater Lighthouse guide vessels into?+
Nakira Kō Outer Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Matoya at 4.8 NM to the N. Other ports served include Hamajima (7.4 NM W), Gokasho (10.9 NM WNW), Toba (12.2 NM NNW), Suga (12.9 NM N). Mariners should consult the relevant chart for full approach and pilotage information.
Is Nakira Kō Outer Breakwater Lighthouse still active and maintained?+
Yes, Nakira Kō Outer 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 Nakira Kō Outer Breakwater Lighthouse?+
Nakira Kō Outer 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 Nakira Kō Outer Breakwater Lighthouse?+
You can track vessels near Nakira Kō Outer 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.