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Suō Ikada Se Lighthouse

Fl Green 8s🇯🇵Hirao, JPOperational

Location & Light Range

About Suō Ikada Se Lighthouse

Suō Ikada Se is a lighthouse situated on a shoal 1.7 kilometers west-northwest of the Kame Iwa light in Yamaguchi Prefecture, Japan. The structure consists of a 9.5-meter round cylindrical concrete tower, painted green, which stands atop a large concrete pier. Its light emits a single green flash every 8 seconds. Accessible only by boat, the site is open to visitors, but the tower itself is closed to the public. This lighthouse has been an active aid to navigation for many years.

Why it matters: This lighthouse warns vessels of a hazardous shoal and is essential for local navigation in the waters west-northwest of the Kame Iwa light.

Light & Optic

Characteristic Signature
Fl Green 8s
Flash Type
Flashing
Light Color
Green
Interval
8s
Raw Code
Fl G 8s
Focal Height
14m
Geographic Range
11.6NM

Location

City
Hirao
Country
🇯🇵Japan
Region
Yamaguchi Prefecture
Sea Region
Located on a shoal about 1.7 km west northwest of the Kame Iwa light.
Latitude
33.8648°
Longitude
132.0563°

References & Identifiers

Nearest Port
Hirao(2.6 km)
Admiralty No.
M5407
NGA No.
9464
USCG No.
JCG-5117

Tower & Structure

Tower Height
9.5m
Tower Shape
cylindrical
Tower Color
green
Material
concrete

Structure: round cylindrical concrete tower mounted on a large concrete pier

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Suō Ikada Se Lighthouse at night?+
Suō Ikada Se 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 Suō Ikada Se Lighthouse guide vessels into?+
Suō Ikada Se Lighthouse assists vessels approaching 5 nearby ports. The closest is Yanai at 6.3 NM to the NE. Other ports served include Hirao (6.4 NM NE), Hikari (8.5 NM NW), Kuka (11.5 NM ENE), Kudamatsu (13.2 NM NW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Suō Ikada Se Lighthouse still active and maintained?+
Yes, Suō Ikada Se 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 Suō Ikada Se Lighthouse?+
Suō Ikada Se 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 Suō Ikada Se Lighthouse?+
You can track vessels near Suō Ikada Se 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.