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Kō North Breakwater Lighthouse

Fl R 3s🇯🇵Rishiri and Rebun, Hokkaido, JPOperational

Location & Light Range

About Kō North Breakwater Lighthouse

This quadrilateral concrete tower stands 23 meters high on the Kō North Breakwater. Its focal plane is 14 meters above the water. The structure is painted in alternating white and red bands, with a matching red and white rectangular daymark. It emits a single red flash every three seconds, visible for 5 nautical miles.

Light & Optic

Characteristic Signature
Fl R 3s
Flash Type
Flashing
Light Color
Red
Flash Count
1 flash
Interval
3s
Raw Code
Fl.R. period 3s
Focal Height
14m
Geographic Range
5NM

Location

City
Rishiri and Rebun, Hokkaido
Country
🇯🇵JP
Latitude
45.3027°
Longitude
141.0529°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
23m
Tower Shape
quadrilateral
Tower Color
white and red
Material
concrete

Structure: Quadrilateral latticed tower, red and white rectangular daymark; 23

References & Identifiers

Admiralty No.
M6910.7
NGA No.
1440
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Frequently Asked Questions

How do mariners identify Kō North Breakwater Lighthouse at night?+
Kō North Breakwater displays the characteristic Fl R 3s — 1 red flash every 3 seconds. 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 Kō North Breakwater Lighthouse guide vessels into?+
Kō North Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Kafuka at 0.2 NM to the SW. Other ports served include Fukai (2.1 NM N), Kutsugata (7.6 NM SSE), Oshidomari (8.3 NM ESE), Shido (8.3 NM ESE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Kō North Breakwater Lighthouse still active and maintained?+
Yes, Kō North 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.
How can I track vessels near Kō North Breakwater Lighthouse?+
You can track vessels near Kō North 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.