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Iburi Kō South Breakwater Lighthouse

Fl Green 5s🇯🇵Tosashimizu, JPOperational

Location & Light Range

About Iburi Kō South Breakwater Lighthouse

This cylindrical concrete tower, standing 9.5 meters tall, is painted white and topped with a flared section. Located at the end of Iburi's south breakwater, it emits a green flashing light every five seconds. The structure includes an attached equipment shelter. The focal height of the light is 14 meters, providing a geographic range of 11.6 nautical miles. The site is open to the public, though the tower itself is closed.

Why it matters: This light marks the end of the south breakwater, ensuring safe navigation into Iburi Kō harbor.

Light & Optic

Characteristic Signature
Fl Green 5s
Flash Type
Flashing
Light Color
Green
Interval
5s
Raw Code
Fl G 5s
Focal Height
14m
Geographic Range
11.6NM

Location

City
Tosashimizu
Country
🇯🇵Japan
Region
Kochi Prefecture
Sea Region
Located at the end of the south breakwater of Iburi.
Latitude
32.7660°
Longitude
132.9478°

References & Identifiers

Nearest Port
Tosashimizu(0.8 km)
Admiralty No.
M5601.9
NGA No.
10272
ARLHS No.
JPN-295

Tower & Structure

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

Structure: round concrete tower with a flared top, attached to a small equipment shelter

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 Iburi Kō South Breakwater Lighthouse at night?+
Iburi Kō South Breakwater displays the characteristic Fl Green 5s. 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 Iburi Kō South Breakwater Lighthouse guide vessels into?+
Iburi Kō South Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Tosashimizu at 0.9 NM to the NE. Other ports served include Ashizuri (1.1 NM NNW), Kozukushi (13.5 NM WNW), Ozuku (13.6 NM WNW), Sukumowan (14.8 NM NW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Iburi Kō South Breakwater Lighthouse still active and maintained?+
Yes, Iburi Kō South 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 Iburi Kō South Breakwater Lighthouse?+
Iburi Kō South 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 Iburi Kō South Breakwater Lighthouse?+
You can track vessels near Iburi Kō South 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.