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Seto Fukushima Kō North Breakwater Lighthouse

Fl (2) Green 6s🇯🇵Saikai, JPOperational

Location & Light Range

About Seto Fukushima Kō North Breakwater Lighthouse

This white concrete post structure, standing 8.5 meters tall, marks the end of Seto harbor's north breakwater in Saikai, Japan. It is attached to a square, one-story concrete equipment shelter. The lighthouse emits a green light, characterized by two flashes every six seconds. With a focal height of 12 meters, it has a geographic range of 11 nautical miles. The site is accessible, but the tower itself is closed to the public.

Why it matters: This light delineates the harbor entrance, guiding vessels safely to the port of Saikai and preventing collisions with the breakwater.

Light & Optic

Characteristic Signature
Fl (2) Green 6s
Flash Type
Flashing
Light Color
Green
Flash Count
2 flashes
Interval
6s
Raw Code
Fl G 6s
Focal Height
12m
Geographic Range
11NM

Location

City
Saikai
Country
🇯🇵Japan
Region
Nagasaki Prefecture
Sea Region
Located at the end of the detached north breakwater of Seto harbor in Saikai, Japan.
Latitude
32.9403°
Longitude
129.6349°

References & Identifiers

Nearest Port
Seto(0.1 km)
Admiralty No.
M5208.4
NGA No.
11848
ARLHS No.
JPN-2261

Tower & Structure

Tower Height
8.5m
Tower Shape
post
Tower Color
white
Material
concrete

Structure: An 8.5m white concrete post attached to a square 1-story concrete 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 Seto Fukushima Kō North Breakwater Lighthouse at night?+
Seto Fukushima Kō North Breakwater displays the characteristic Fl (2) Green 6s — 2 green flashes every 6 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 green color may indicate a specific sector or warning zone.
Which ports and harbors does Seto Fukushima Kō North Breakwater Lighthouse guide vessels into?+
Seto Fukushima Kō North Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Seto at 0.4 NM to the S. Other ports served include Saikai (0.9 NM ESE), Matsushima, Nagasaki (1.7 NM W), Matsuura, Nagasaki (1.8 NM WSW), Nanatsugama (1.8 NM WSW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Seto Fukushima Kō North Breakwater Lighthouse still active and maintained?+
Yes, Seto Fukushima 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.
What shipping routes pass near Seto Fukushima Kō North Breakwater Lighthouse?+
Seto Fukushima Kō North 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 Seto Fukushima Kō North Breakwater Lighthouse?+
You can track vessels near Seto Fukushima 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.