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Gōnoura Kō Outer Breakwater Lighthouse

Fl Red 3s🇯🇵Iki, JPOperational

Location & Light Range

About Gōnoura Kō Outer Breakwater Lighthouse

This red, cylindrical concrete lighthouse stands 9 meters tall, with its focal plane at 13 meters. It is attached to a 1-story concrete equipment room and features a flared top. The light emits a single red flash every 3 seconds, visible for 11.3 nautical miles. The lighthouse is situated at the north end of a detached breakwater for Gōnoura harbor. It marks the terminal for ferries linking Iki Shima to Kyūshū.

Why it matters: This lighthouse is critical for the safe navigation of ferries connecting Iki Shima to Kyūshū, ensuring reliable transport for goods and people.

Light & Optic

Characteristic Signature
Fl Red 3s
Flash Type
Flashing
Light Color
Red
Interval
3s
Raw Code
Fl R 3s
Focal Height
13m
Geographic Range
11.3NM

Location

City
Iki
Country
🇯🇵Japan
Region
Nagasaki Prefecture
Sea Region
Located at the north end of a detached breakwater of Gōnoura harbor, on the south coast of Iki Shima, marking the terminal for ferries linking Iki Shima to the mainland of Kyūshū.
Latitude
33.7424°
Longitude
129.6832°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
9m
Tower Shape
cylindrical
Tower Color
red
Material
concrete

Structure: round concrete tower with a flared top attached to a 1-story concrete equipment room

References & Identifiers

Nearest Port
Yobuko(15.8 km)
Admiralty No.
M5259.27
NGA No.
12689
USCG No.
JCG-5933.8
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Frequently Asked Questions

How do mariners identify Gōnoura Kō Outer Breakwater Lighthouse at night?+
Gōnoura Kō Outer Breakwater displays the characteristic Fl Red 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 red color may indicate a specific sector or warning zone.
Which ports and harbors does Gōnoura Kō Outer Breakwater Lighthouse guide vessels into?+
Gōnoura Kō Outer Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Ashibe at 5.4 NM to the NE. Other ports served include Katsumoto (7 NM N), Yobuko (15.9 NM SE), Tobo (20 NM SE), Karatsu (21 NM SE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Gōnoura Kō Outer Breakwater Lighthouse still active and maintained?+
Yes, Gōnoura Kō Outer Breakwater 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 Gōnoura Kō Outer Breakwater Lighthouse?+
Gōnoura Kō Outer Breakwater 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 Gōnoura Kō Outer Breakwater Lighthouse?+
You can track vessels near Gōnoura Kō Outer Breakwater 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.