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Kyodomari Kō Lighthouse

Fl Green 8s🇯🇵Isahaya, JPOperational

Location & Light Range

About Kyodomari Kō Lighthouse

This green concrete lighthouse was built in 1970 to guide vessels into the main eastern harbor of Minamikushiyama. The cylindrical tower, standing 15 meters tall, features a gallery and is painted green. Its light emits a single green flash every eight seconds. The lighthouse is situated on the west breakwater of the harbor. While the site is accessible to the public, the tower itself remains closed.

Why it matters: The lighthouse is essential for the safe navigation of vessels entering and exiting the busy Minamikushiyama harbor, marking the western edge of its main entrance.

Light & Optic

Characteristic Signature
Fl Green 8s
Flash Type
Flashing
Light Color
Green
Interval
8s
Raw Code
Fl G 8s
Focal Height
12m
Geographic Range
11NM

Construction & History

Year Built
1970

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
15m
Tower Shape
cylindrical
Tower Color
green
Material
concrete

Structure: round concrete tower with gallery, painted green

Location

City
Isahaya
Country
🇯🇵Japan
Region
Nagasaki Prefecture
Sea Region
Located on the west breakwater of the main (eastern) harbor of Minamikushiyama.
Latitude
32.7613°
Longitude
130.0496°

References & Identifiers

Nearest Port
Mogi(7.5 km)
Admiralty No.
M5187.4
NGA No.
11732
ARLHS No.
JPN-2230
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Frequently Asked Questions

How do mariners identify Kyodomari Kō Lighthouse at night?+
Kyodomari Kō displays the characteristic Fl Green 8s. 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 Kyodomari Kō Lighthouse guide vessels into?+
Kyodomari Kō Lighthouse assists vessels approaching 5 nearby ports. The closest is Tayui at 2.5 NM to the W. Other ports served include Mogi (7.5 NM WSW), Aikawa, Nagasaki (10.4 NM WSW), Furue, Nagasaki (10.4 NM WSW), Furusato, Nagasaki (10.4 NM WSW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Kyodomari Kō Lighthouse still active and maintained?+
Yes, Kyodomari Kō 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 Kyodomari Kō Lighthouse?+
Kyodomari Kō 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 Kyodomari Kō Lighthouse?+
You can track vessels near Kyodomari Kō 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.