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Iki Gono Se Lighthouse

Fl White 3s🇯🇵Iki, JPOperational

Location & Light Range

About Iki Gono Se Lighthouse

Also known as: Iki Gono Se (Go Se)

This 7.5-meter concrete post, painted white, is attached to a single-story concrete equipment building. It stands at a focal height of 11 meters and emits a white flash every three seconds, visible for nearly 11 nautical miles. The lighthouse is situated off the south coast of Iki Shima, marking the approach to Gōnoura. It is accessible only by boat and serves vessels navigating these waters. The structure's white coloring contrasts with the surrounding coastal scenery.

Why it matters: The lighthouse is critical for safe navigation as vessels approach Gōnoura, a key port on Iki Shima. Its consistent light helps mariners identify the correct channel and avoid hazards in the coastal waters.

Light & Optic

Characteristic Signature
Fl White 3s
Flash Type
Flashing
Light Color
White
Interval
3s
Raw Code
Fl W 3s
Focal Height
11m
Geographic Range
10.7NM

Location

City
Iki
Country
🇯🇵Japan
Region
Nagasaki Prefecture
Sea Region
Located off the south coast of Iki Shima at the start of the approach to Gōnoura.
Latitude
33.7099°
Longitude
129.6967°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
7.5m
Tower Color
white
Material
concrete

Structure: A 7.5m concrete post attached to a 1-story concrete equipment room, painted white.

References & Identifiers

Nearest Port
Yobuko(13.9 km)
Admiralty No.
M5261.8
NGA No.
12698
ARLHS No.
JPN-802
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Frequently Asked Questions

How do mariners identify Iki Gono Se Lighthouse at night?+
Iki Gono Se 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 Iki Gono Se Lighthouse guide vessels into?+
Iki Gono Se Lighthouse assists vessels approaching 5 nearby ports. The closest is Ashibe at 6.6 NM to the NNE. Other ports served include Katsumoto (8.9 NM N), Yobuko (14.1 NM SE), Tobo (18 NM SE), Karatsu (19.2 NM SE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Iki Gono Se Lighthouse still active and maintained?+
Yes, Iki Gono 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 Iki Gono Se Lighthouse?+
Iki Gono 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 Iki Gono Se Lighthouse?+
You can track vessels near Iki Gono 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.