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Genkai Shima Lighthouse

Fl White 15s🇯🇵Fukuoka, JPOperational

Location & Light Range

About Genkai Shima Lighthouse

Constructed of concrete in 1934, the Genkai Shima Lighthouse stands 12 meters tall as a white cylindrical tower. It rises from a semicircular, single-story equipment building on the island's northeastern side. The light, visible for 22.5 nautical miles, emits a white flash every 15 seconds. With a focal height of 79 meters, the lighthouse is situated on Genkai Shima, an island positioned at the entrance to Fukuoka Bay, approximately 3.5 km northeast of Nishima Misaki. The site is open to the public, though the tower itself remains closed.

Why it matters: This lighthouse is essential for guiding vessels entering and leaving Fukuoka Bay, a key port for regional commerce and fishing.

Light & Optic

Characteristic Signature
Fl White 15s
Flash Type
Flashing
Light Color
White
Interval
15s
Raw Code
Fl W 15s
Focal Height
79m
Geographic Range
22.5NM

Construction & History

Year Built
1934

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
12m
Tower Shape
cylindrical
Tower Color
white
Material
concrete

Structure: round cylindrical concrete tower, rising from a semicircular 1-story equipment building

Location

City
Fukuoka
Country
🇯🇵Japan
Region
Fukuoka Prefecture
Sea Region
Genkai Shima is an island in the entrance to Fukuoka Bay, about 3.5 km northeast of Nishima Misaki, located on the northeastern side of the island.
Latitude
33.6919°
Longitude
130.2347°

References & Identifiers

Nearest Port
Hakata(7.5 km)
Admiralty No.
M5272
NGA No.
12320
ARLHS No.
JPN-069
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Frequently Asked Questions

How do mariners identify Genkai Shima Lighthouse at night?+
Genkai Shima displays the characteristic Fl White 15s. 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 white color may indicate a specific sector or warning zone.
Which ports and harbors does Genkai Shima Lighthouse guide vessels into?+
Genkai Shima Lighthouse assists vessels approaching 5 nearby ports. The closest is Hakata at 7.5 NM to the ESE. Other ports served include Hakata/Fukuoka (8 NM ESE), Kafuri (9.2 NM SSW), Koza (9.9 NM ESE), Kasuya (13.2 NM ESE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Genkai Shima Lighthouse still active and maintained?+
Yes, Genkai Shima 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 Genkai Shima Lighthouse?+
Genkai Shima 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 Genkai Shima Lighthouse?+
You can track vessels near Genkai Shima 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.