Get the MarineRadar appSatellite AISSatellite live trackingTrack any shipLive alerts112,000+ ships trackedDownload free

Yanagi Kō Lighthouse

Fl Green 4s🇯🇵Kamiamakusa, JPOperational

Location & Light Range

About Yanagi Kō Lighthouse

Built in 1976, this lighthouse stands at the end of Yanagi harbor's west breakwater. The structure is an 8.5-meter white concrete post topped with a lantern, attached to a 1-story concrete equipment shelter. Its focal height reaches 12 meters above sea level. The lighthouse emits a green light, flashing every 4 seconds, with a geographic range of 11 nautical miles. The site is open to the public, though the tower itself is closed.

Why it matters: This lighthouse serves as a clear marker for vessels entering Yanagi harbor, guiding them around the west breakwater and preventing groundings in the port environment.

Light & Optic

Characteristic Signature
Fl Green 4s
Flash Type
Flashing
Light Color
Green
Interval
4s
Raw Code
Fl G 4s
Focal Height
12m
Geographic Range
11NM

Construction & History

Year Built
1976

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
8.5m
Tower Color
white
Material
concrete

Structure: A 8.5m concrete post with lantern, attached to a square 1-story concrete equipment shelter. The entire lighthouse is white.

Location

City
Kamiamakusa
Country
🇯🇵Japan
Region
Kumamoto Prefecture
Sea Region
Located at the end of the west breakwater of Yanagi harbor, at the south end of Ōyano Shima.
Latitude
32.5479°
Longitude
130.4413°

References & Identifiers

Nearest Port
Yanagi(0.1 km)
ARLHS No.
JPN-2114
Live tracking · 50,000+ mariners

Find Yanagi Kō Lighthouse on the live nautical map

Plan voyages near Japan, see nearby vessels in real time, and explore 14,900+ navigation aids in the app.

Nautical mapNearby vesselsVoyage planning
Get the App

Frequently Asked Questions

How do mariners identify Yanagi Kō Lighthouse at night?+
Yanagi Kō displays the characteristic Fl 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 Yanagi Kō Lighthouse guide vessels into?+
Yanagi Kō Lighthouse assists vessels approaching 5 nearby ports. The closest is Yanagi at 0.1 NM to the N. Other ports served include Amura (1.5 NM SSE), Aizu, Kumamoto (3.4 NM NNE), Akasaki, Kumamoto (3.4 NM NNE), Fukuura, Kumamoto (3.4 NM NNE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Yanagi Kō Lighthouse still active and maintained?+
Yes, Yanagi 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 Yanagi Kō Lighthouse?+
Yanagi 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 Yanagi Kō Lighthouse?+
You can track vessels near Yanagi 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.