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Kanashiro Iwa Lighthouse

Fl White 3s🇯🇵Iki, JPOperational

Location & Light Range

About Kanashiro Iwa Lighthouse

Kanashiro Iwa Lighthouse is a 10-meter-tall, white cylindrical concrete tower. It is situated on a small island 1.6 kilometers east of the southeastern point of Iki Shima. The light source is positioned 22 meters above sea level, emitting a white flash every three seconds (Fl W 3s). The tower has a flared top and connects to a one-story equipment building. The lighthouse is 12.4 kilometers from Yobuko, the closest port, and its light covers an area of 13.6 nautical miles.

Why it matters: This navigation aid marks the southeastern extremity of Iki Shima, assisting vessels navigating the waters near this landmass.

Light & Optic

Characteristic Signature
Fl White 3s
Flash Type
Flashing
Light Color
White
Interval
3s
Raw Code
Fl W 3s
Focal Height
22m
Geographic Range
13.6NM

Location

City
Iki
Country
🇯🇵Japan
Region
Nagasaki Prefecture
Sea Region
Located on a small island about 1.6 km east of the southeastern tip of Iki Shima.
Latitude
33.7424°
Longitude
129.8250°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
10m
Tower Shape
cylindrical
Tower Color
white
Material
concrete

Structure: round concrete tower flared at the op and conncted to a small 1-story equipment shelter

References & Identifiers

Nearest Port
Yobuko(12.4 km)
Admiralty No.
M5261.45
NGA No.
12684
ARLHS No.
JPN-811
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Frequently Asked Questions

How do mariners identify Kanashiro Iwa Lighthouse at night?+
Kanashiro Iwa displays the characteristic Fl White 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 white color may indicate a specific sector or warning zone.
Which ports and harbors does Kanashiro Iwa Lighthouse guide vessels into?+
Kanashiro Iwa Lighthouse assists vessels approaching 5 nearby ports. The closest is Ashibe at 5.2 NM to the NW. Other ports served include Katsumoto (9.6 NM NW), Yobuko (12.5 NM SSE), Tobo (16.5 NM SSE), Karatsu (17.1 NM SSE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Kanashiro Iwa Lighthouse still active and maintained?+
Yes, Kanashiro Iwa 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 Kanashiro Iwa Lighthouse?+
Kanashiro Iwa 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 Kanashiro Iwa Lighthouse?+
You can track vessels near Kanashiro Iwa 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.