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Isozu Kō South Breakwater Lighthouse

Iso Green 6s🇯🇵Yokkaichi, JPOperational

Location & Light Range

About Isozu Kō South Breakwater Lighthouse

The Isozu Kō South Breakwater Lighthouse is a cylindrical fiberglass tower constructed in 1961. Standing 10 meters tall, it emits an isophase green light with a 6-second cycle. This structure is situated at the extremity of the south breakwater, extending into the waters of Isozu Kō, an industrial harbor on the south side of Yokkaichi. The lighthouse's focal height is 14 meters, providing a geographic range of 11.6 nautical miles. The tower features a gallery and is painted white. In recent years, the Coast Guard has appealed for an end to graffiti on the lighthouse.

Why it matters: This lighthouse is important for guiding industrial shipping traffic into Isozu Kō, clearly marking the position of the south breakwater and preventing collisions within the busy port entrance.

Light & Optic

Characteristic Signature
Iso Green 6s
Flash Type
Isophase
Light Color
Green
Interval
6s
Raw Code
Iso G 6s
Focal Height
14m
Geographic Range
11.6NM

Construction & History

Year Built
1961

Significant events: Coast Guard appealed for an end to graffiti on the lighthouse

References & Identifiers

Nearest Port
Suzuka(2.5 km)
Admiralty No.
M6096
NGA No.
6192

Tower & Structure

Tower Height
10m
Tower Shape
cylindrical
Tower Color
white
Material
fiberglass

Structure: round cylindrical fiberglass tower with gallery

Location

City
Yokkaichi
Country
🇯🇵Japan
Region
Mie Prefecture
Sea Region
Located at the end of the south breakwater at Isozu Kō, an industrial harbor on the south side of Yokkaichi.
Latitude
34.9257°
Longitude
136.6485°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Isozu Kō South Breakwater Lighthouse at night?+
Isozu Kō South Breakwater displays the characteristic Iso Green 6s. 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 Isozu Kō South Breakwater Lighthouse guide vessels into?+
Isozu Kō South Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Yokkaichi at 2.2 NM to the N. Other ports served include SUZUKA (2.5 NM SSW), Chiyozaki (2.6 NM NNW), Tokoname (9.6 NM ESE), Nagoya, Aichi (11.7 NM NE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Isozu Kō South Breakwater Lighthouse still active and maintained?+
Yes, Isozu 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 Isozu Kō South Breakwater Lighthouse?+
Isozu 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 Isozu Kō South Breakwater Lighthouse?+
You can track vessels near Isozu 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.